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StarInfo/Whitehouse/!Trees/Instr
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199607.adf » Regulars |
| Filename: | StarInfo/Whitehouse/!Trees/Instr |
| Read OK: | ✔ |
| File size: | 18AB bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
�HEADER Load this file from the icon bar menu of !Trees, or from the Help option on the filer menu. �END This program is an adaption of the same program by Tim Jones on the Jan 94 AU disc. The original was written in Basic, and in this version the most important bits have been (fairly directly) translated into ARM code, speeding it up overall by a factor of 40 or more (and also using memory about 4 times more efficiently) This version also has a few additions - producing a bumpy terrain, allowing more than one tree, and letting you edit the settings. Using Trees--------------------------------------------------------- I recommend that you save any important data in memory before running trees - the program is NOT crash-proof. When run the program just installs itself on the icon bar. Click on its icon to open the options window. The top left part is for memory. The top right will list any problems that will prevent the current settings being used. The bottom half of the window is that actual settings. These are split into 4 groups - click on the radio icons to change the group being displayed. When a tree is drawn it will initially appear covering the whole screen. Once you press space, the desktop reappears, with the tree inside a window - this can now be saved as a sprite. If you close the window containing the picture it can be recovered by clicking on the icon bar icon. The interactive help gives some advice about the settings, and a few are explained below - A tree is calculated by starting with the trunk, which then splits into several branches, each of which splits into several smaller branches and so on. Leaves are added to the smallest branches and a grassy floor is drawn around the base of the tree. BRANCHES SPLIT INTO... - This determines how many new branches are created when a larger branch splits up. It will normally be 2 or 3 (3 is best). Because this applies at every stage of the tree the cumulative effect of changing this can be very great. NUMBER OF BRANCH SPLITTINGS - This determines how many layers of branches are added before the program stops. If this is 1 the tree will just be a trunk with a group of branches coming from it. Again increasing this greatly increases the complexity of the tree. RESOLUTION REDUCTION - This reduces the 'branch sides' and 'branch sections' for each layer of branches. For a large tree the outer branches are much smaller than the trunk, so don't need to be made up of as many segments. Since most of the segments in a diagram are in the branches and most of the branches of a tree are in the outer layer, using this system can reduce the number of segments used in a tree without making it look noticeably different. It is worth using at least 1 here. If sides and sections start very large then 2 might be worthwhile. The program range checks sides and sections and will prevent them going too low. Note - this does NOT change the overall size or position of the branches, just how many pieces they are chopped up into for plotting. LEAF GENERATIONS - This determines how many of the generations of branches have leaves on. 2 is generally best, if 1 (outermost branches only) then the foliage may look rather sparse, 3 or more and it can be hard to see any branches at all. The branches with leaves are always the outermost generations. TREE SHAPE - This changes the orientation of the branches of the tree. The numbers have no particular meaning. Unless you change this or one of the other settings, clicking again on the Draw button will produce exactly the same tree(s). With multiple trees, the positions of the trees on the terrain are random - each time the picture is drawn the trees will be in different places. LEAF SIZE and NUMBER LEAVES - These control the leaves that appear on EACH appropriate branch. If you increase one it is best to decrease the other to keep the overall amount of foliage about constant. TREE SEPARATION - This controls the minimum spreading of the trees and of the control points in the terrain. The units are arbitrary, but the system works in terrain blocks (independant of the size these are on screen). Thus increasing the grass segment size will also make the trees further apart on the screen. If the program creates an error 'Failed to find suitable positions for tree-trunks and/or terrain.' when trying to draw, then this setting was too high. Memory-------------------------------------------------------------- If the tree you have selected needs more memory than is available, then a warning will appear in the box at the top right of the options window. The settings should be changed until this goes away. If short of memory reduce the settings Branch sections and sides and/or increase Resolution Reducion. This will decrease the memory needed for each branch. The memory used on leaves and the grass is normally fairly insignificant. The amount of memory allocated to Trees can be increased or decreased by dragging its bar in the Task manager's memory display. To simply grab all the spare memory in the machine click on the Claim button in the options window. Trees will probably need at least 1MB to do anything worthwhile. Time---------------------------------------------------------------- Even a complex tree on a slower machine should not take more than a few minutes to draw. Many trees will take less than a minute. About the program--------------------------------------------------- If you want to know how the program works, then I suggest you look back at the original Basic version (on AU January 94 disc), which is much clearer. The parts that have been converted to machine code are those dealing with individual rectangles. The parts that calculate the general structure of the tree are relatively unchanged. AU described the Basic version as being mathematically sound. This is no longer true. Much of the armcode is approximate, and for example, the plotter is is (I think) incorrect - I certainly wouldn't describe it as sound. However the result still looks about the same. Please note - the template file is non-standard. It will crash any template editor other than Tempest. The module's name and number are both official Acorn allocated ones. The module and the !Browzer application remain my copyright.
00000000 a4 48 45 41 44 45 52 0a 4c 6f 61 64 20 74 68 69 |.HEADER.Load thi| 00000010 73 20 66 69 6c 65 20 66 72 6f 6d 20 74 68 65 20 |s file from the | 00000020 69 63 6f 6e 20 62 61 72 20 6d 65 6e 75 20 6f 66 |icon bar menu of| 00000030 20 21 54 72 65 65 73 2c 20 6f 72 20 66 72 6f 6d | !Trees, or from| 00000040 20 74 68 65 20 48 65 6c 70 20 6f 70 74 69 6f 6e | the Help option| 00000050 20 6f 6e 20 74 68 65 20 66 69 6c 65 72 20 6d 65 | on the filer me| 00000060 6e 75 2e 0a a4 45 4e 44 0a 0a 54 68 69 73 20 70 |nu...END..This p| 00000070 72 6f 67 72 61 6d 20 69 73 20 61 6e 20 61 64 61 |rogram is an ada| 00000080 70 74 69 6f 6e 20 6f 66 20 74 68 65 20 73 61 6d |ption of the sam| 00000090 65 20 70 72 6f 67 72 61 6d 20 62 79 20 54 69 6d |e program by Tim| 000000a0 20 4a 6f 6e 65 73 20 6f 6e 20 74 68 65 20 4a 61 | Jones on the Ja| 000000b0 6e 20 39 34 20 41 55 20 64 69 73 63 2e 20 54 68 |n 94 AU disc. Th| 000000c0 65 20 6f 72 69 67 69 6e 61 6c 20 77 61 73 20 77 |e original was w| 000000d0 72 69 74 74 65 6e 20 69 6e 20 42 61 73 69 63 2c |ritten in Basic,| 000000e0 20 61 6e 64 20 69 6e 20 74 68 69 73 20 76 65 72 | and in this ver| 000000f0 73 69 6f 6e 20 74 68 65 20 6d 6f 73 74 20 69 6d |sion the most im| 00000100 70 6f 72 74 61 6e 74 20 62 69 74 73 20 68 61 76 |portant bits hav| 00000110 65 20 62 65 65 6e 20 28 66 61 69 72 6c 79 20 64 |e been (fairly d| 00000120 69 72 65 63 74 6c 79 29 20 74 72 61 6e 73 6c 61 |irectly) transla| 00000130 74 65 64 20 69 6e 74 6f 20 41 52 4d 20 63 6f 64 |ted into ARM cod| 00000140 65 2c 20 73 70 65 65 64 69 6e 67 20 69 74 20 75 |e, speeding it u| 00000150 70 20 6f 76 65 72 61 6c 6c 20 62 79 20 61 20 66 |p overall by a f| 00000160 61 63 74 6f 72 20 6f 66 20 34 30 20 6f 72 20 6d |actor of 40 or m| 00000170 6f 72 65 20 28 61 6e 64 20 61 6c 73 6f 20 75 73 |ore (and also us| 00000180 69 6e 67 20 6d 65 6d 6f 72 79 20 61 62 6f 75 74 |ing memory about| 00000190 20 34 20 74 69 6d 65 73 20 6d 6f 72 65 20 65 66 | 4 times more ef| 000001a0 66 69 63 69 65 6e 74 6c 79 29 0a 54 68 69 73 20 |ficiently).This | 000001b0 76 65 72 73 69 6f 6e 20 61 6c 73 6f 20 68 61 73 |version also has| 000001c0 20 61 20 66 65 77 20 61 64 64 69 74 69 6f 6e 73 | a few additions| 000001d0 20 2d 20 70 72 6f 64 75 63 69 6e 67 20 61 20 62 | - producing a b| 000001e0 75 6d 70 79 20 74 65 72 72 61 69 6e 2c 20 61 6c |umpy terrain, al| 000001f0 6c 6f 77 69 6e 67 20 6d 6f 72 65 20 74 68 61 6e |lowing more than| 00000200 20 6f 6e 65 20 74 72 65 65 2c 20 61 6e 64 20 6c | one tree, and l| 00000210 65 74 74 69 6e 67 20 79 6f 75 20 65 64 69 74 20 |etting you edit | 00000220 74 68 65 20 73 65 74 74 69 6e 67 73 2e 0a 0a 0a |the settings....| 00000230 55 73 69 6e 67 20 54 72 65 65 73 2d 2d 2d 2d 2d |Using Trees-----| 00000240 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000270 2d 2d 2d 2d 0a 0a 49 20 72 65 63 6f 6d 6d 65 6e |----..I recommen| 00000280 64 20 74 68 61 74 20 79 6f 75 20 73 61 76 65 20 |d that you save | 00000290 61 6e 79 20 69 6d 70 6f 72 74 61 6e 74 20 64 61 |any important da| 000002a0 74 61 20 69 6e 20 6d 65 6d 6f 72 79 20 62 65 66 |ta in memory bef| 000002b0 6f 72 65 20 72 75 6e 6e 69 6e 67 20 74 72 65 65 |ore running tree| 000002c0 73 20 2d 20 74 68 65 20 70 72 6f 67 72 61 6d 20 |s - the program | 000002d0 69 73 20 4e 4f 54 20 63 72 61 73 68 2d 70 72 6f |is NOT crash-pro| 000002e0 6f 66 2e 0a 0a 0a 57 68 65 6e 20 72 75 6e 20 74 |of....When run t| 000002f0 68 65 20 70 72 6f 67 72 61 6d 20 6a 75 73 74 20 |he program just | 00000300 69 6e 73 74 61 6c 6c 73 20 69 74 73 65 6c 66 20 |installs itself | 00000310 6f 6e 20 74 68 65 20 69 63 6f 6e 20 62 61 72 2e |on the icon bar.| 00000320 20 20 43 6c 69 63 6b 20 6f 6e 20 69 74 73 20 69 | Click on its i| 00000330 63 6f 6e 20 74 6f 20 6f 70 65 6e 20 74 68 65 20 |con to open the | 00000340 6f 70 74 69 6f 6e 73 20 77 69 6e 64 6f 77 2e 20 |options window. | 00000350 20 54 68 65 20 74 6f 70 20 6c 65 66 74 20 70 61 | The top left pa| 00000360 72 74 20 69 73 20 66 6f 72 20 6d 65 6d 6f 72 79 |rt is for memory| 00000370 2e 20 20 54 68 65 20 74 6f 70 20 72 69 67 68 74 |. The top right| 00000380 20 77 69 6c 6c 20 6c 69 73 74 20 61 6e 79 20 70 | will list any p| 00000390 72 6f 62 6c 65 6d 73 20 74 68 61 74 20 77 69 6c |roblems that wil| 000003a0 6c 20 70 72 65 76 65 6e 74 20 74 68 65 20 63 75 |l prevent the cu| 000003b0 72 72 65 6e 74 20 73 65 74 74 69 6e 67 73 20 62 |rrent settings b| 000003c0 65 69 6e 67 20 75 73 65 64 2e 20 20 54 68 65 20 |eing used. The | 000003d0 62 6f 74 74 6f 6d 20 68 61 6c 66 20 6f 66 20 74 |bottom half of t| 000003e0 68 65 20 77 69 6e 64 6f 77 20 69 73 20 74 68 61 |he window is tha| 000003f0 74 20 61 63 74 75 61 6c 20 73 65 74 74 69 6e 67 |t actual setting| 00000400 73 2e 20 20 54 68 65 73 65 20 61 72 65 20 73 70 |s. These are sp| 00000410 6c 69 74 20 69 6e 74 6f 20 34 20 67 72 6f 75 70 |lit into 4 group| 00000420 73 20 2d 20 63 6c 69 63 6b 20 6f 6e 20 74 68 65 |s - click on the| 00000430 20 72 61 64 69 6f 20 69 63 6f 6e 73 20 74 6f 20 | radio icons to | 00000440 63 68 61 6e 67 65 20 74 68 65 20 67 72 6f 75 70 |change the group| 00000450 20 62 65 69 6e 67 20 64 69 73 70 6c 61 79 65 64 | being displayed| 00000460 2e 0a 0a 57 68 65 6e 20 61 20 74 72 65 65 20 69 |...When a tree i| 00000470 73 20 64 72 61 77 6e 20 69 74 20 77 69 6c 6c 20 |s drawn it will | 00000480 69 6e 69 74 69 61 6c 6c 79 20 61 70 70 65 61 72 |initially appear| 00000490 20 63 6f 76 65 72 69 6e 67 20 74 68 65 20 77 68 | covering the wh| 000004a0 6f 6c 65 20 73 63 72 65 65 6e 2e 20 20 4f 6e 63 |ole screen. Onc| 000004b0 65 20 79 6f 75 20 70 72 65 73 73 20 73 70 61 63 |e you press spac| 000004c0 65 2c 20 74 68 65 20 64 65 73 6b 74 6f 70 20 72 |e, the desktop r| 000004d0 65 61 70 70 65 61 72 73 2c 20 77 69 74 68 20 74 |eappears, with t| 000004e0 68 65 20 74 72 65 65 20 69 6e 73 69 64 65 20 61 |he tree inside a| 000004f0 20 77 69 6e 64 6f 77 20 2d 20 74 68 69 73 20 63 | window - this c| 00000500 61 6e 20 6e 6f 77 20 62 65 20 73 61 76 65 64 20 |an now be saved | 00000510 61 73 20 61 20 73 70 72 69 74 65 2e 20 20 49 66 |as a sprite. If| 00000520 20 79 6f 75 20 63 6c 6f 73 65 20 74 68 65 20 77 | you close the w| 00000530 69 6e 64 6f 77 20 63 6f 6e 74 61 69 6e 69 6e 67 |indow containing| 00000540 20 74 68 65 20 70 69 63 74 75 72 65 20 69 74 20 | the picture it | 00000550 63 61 6e 20 62 65 20 72 65 63 6f 76 65 72 65 64 |can be recovered| 00000560 20 62 79 20 63 6c 69 63 6b 69 6e 67 20 6f 6e 20 | by clicking on | 00000570 74 68 65 20 69 63 6f 6e 20 62 61 72 20 69 63 6f |the icon bar ico| 00000580 6e 2e 0a 0a 54 68 65 20 69 6e 74 65 72 61 63 74 |n...The interact| 00000590 69 76 65 20 68 65 6c 70 20 67 69 76 65 73 20 73 |ive help gives s| 000005a0 6f 6d 65 20 61 64 76 69 63 65 20 61 62 6f 75 74 |ome advice about| 000005b0 20 74 68 65 20 73 65 74 74 69 6e 67 73 2c 20 61 | the settings, a| 000005c0 6e 64 20 61 20 66 65 77 20 61 72 65 20 65 78 70 |nd a few are exp| 000005d0 6c 61 69 6e 65 64 20 62 65 6c 6f 77 20 2d 0a 0a |lained below -..| 000005e0 0a 41 20 74 72 65 65 20 69 73 20 63 61 6c 63 75 |.A tree is calcu| 000005f0 6c 61 74 65 64 20 62 79 20 73 74 61 72 74 69 6e |lated by startin| 00000600 67 20 77 69 74 68 20 74 68 65 20 74 72 75 6e 6b |g with the trunk| 00000610 2c 20 77 68 69 63 68 20 74 68 65 6e 20 73 70 6c |, which then spl| 00000620 69 74 73 20 69 6e 74 6f 20 73 65 76 65 72 61 6c |its into several| 00000630 20 62 72 61 6e 63 68 65 73 2c 20 65 61 63 68 20 | branches, each | 00000640 6f 66 20 77 68 69 63 68 20 73 70 6c 69 74 73 20 |of which splits | 00000650 69 6e 74 6f 20 73 65 76 65 72 61 6c 20 73 6d 61 |into several sma| 00000660 6c 6c 65 72 20 62 72 61 6e 63 68 65 73 20 61 6e |ller branches an| 00000670 64 20 73 6f 20 6f 6e 2e 20 4c 65 61 76 65 73 20 |d so on. Leaves | 00000680 61 72 65 20 61 64 64 65 64 20 74 6f 20 74 68 65 |are added to the| 00000690 20 73 6d 61 6c 6c 65 73 74 20 62 72 61 6e 63 68 | smallest branch| 000006a0 65 73 20 61 6e 64 20 61 20 67 72 61 73 73 79 20 |es and a grassy | 000006b0 66 6c 6f 6f 72 20 69 73 20 64 72 61 77 6e 20 61 |floor is drawn a| 000006c0 72 6f 75 6e 64 20 74 68 65 20 62 61 73 65 20 6f |round the base o| 000006d0 66 20 74 68 65 20 74 72 65 65 2e 0a 0a 42 52 41 |f the tree...BRA| 000006e0 4e 43 48 45 53 20 53 50 4c 49 54 20 49 4e 54 4f |NCHES SPLIT INTO| 000006f0 2e 2e 2e 20 2d 20 54 68 69 73 20 64 65 74 65 72 |... - This deter| 00000700 6d 69 6e 65 73 20 68 6f 77 20 6d 61 6e 79 20 6e |mines how many n| 00000710 65 77 20 62 72 61 6e 63 68 65 73 20 61 72 65 20 |ew branches are | 00000720 63 72 65 61 74 65 64 20 77 68 65 6e 20 61 20 6c |created when a l| 00000730 61 72 67 65 72 20 62 72 61 6e 63 68 20 73 70 6c |arger branch spl| 00000740 69 74 73 20 75 70 2e 20 49 74 20 77 69 6c 6c 20 |its up. It will | 00000750 6e 6f 72 6d 61 6c 6c 79 20 62 65 20 32 20 6f 72 |normally be 2 or| 00000760 20 33 20 28 33 20 69 73 20 62 65 73 74 29 2e 20 | 3 (3 is best). | 00000770 42 65 63 61 75 73 65 20 74 68 69 73 20 61 70 70 |Because this app| 00000780 6c 69 65 73 20 61 74 20 65 76 65 72 79 20 73 74 |lies at every st| 00000790 61 67 65 20 6f 66 20 74 68 65 20 74 72 65 65 20 |age of the tree | 000007a0 74 68 65 20 63 75 6d 75 6c 61 74 69 76 65 20 65 |the cumulative e| 000007b0 66 66 65 63 74 20 6f 66 20 63 68 61 6e 67 69 6e |ffect of changin| 000007c0 67 20 74 68 69 73 20 63 61 6e 20 62 65 20 76 65 |g this can be ve| 000007d0 72 79 20 67 72 65 61 74 2e 0a 0a 4e 55 4d 42 45 |ry great...NUMBE| 000007e0 52 20 4f 46 20 42 52 41 4e 43 48 20 53 50 4c 49 |R OF BRANCH SPLI| 000007f0 54 54 49 4e 47 53 20 2d 20 54 68 69 73 20 64 65 |TTINGS - This de| 00000800 74 65 72 6d 69 6e 65 73 20 68 6f 77 20 6d 61 6e |termines how man| 00000810 79 20 6c 61 79 65 72 73 20 6f 66 20 62 72 61 6e |y layers of bran| 00000820 63 68 65 73 20 61 72 65 20 61 64 64 65 64 20 62 |ches are added b| 00000830 65 66 6f 72 65 20 74 68 65 20 70 72 6f 67 72 61 |efore the progra| 00000840 6d 20 73 74 6f 70 73 2e 20 49 66 20 74 68 69 73 |m stops. If this| 00000850 20 69 73 20 31 20 74 68 65 20 74 72 65 65 20 77 | is 1 the tree w| 00000860 69 6c 6c 20 6a 75 73 74 20 62 65 20 61 20 74 72 |ill just be a tr| 00000870 75 6e 6b 20 77 69 74 68 20 61 20 67 72 6f 75 70 |unk with a group| 00000880 20 6f 66 20 62 72 61 6e 63 68 65 73 20 63 6f 6d | of branches com| 00000890 69 6e 67 20 66 72 6f 6d 20 69 74 2e 20 41 67 61 |ing from it. Aga| 000008a0 69 6e 20 69 6e 63 72 65 61 73 69 6e 67 20 74 68 |in increasing th| 000008b0 69 73 20 67 72 65 61 74 6c 79 20 69 6e 63 72 65 |is greatly incre| 000008c0 61 73 65 73 20 74 68 65 20 63 6f 6d 70 6c 65 78 |ases the complex| 000008d0 69 74 79 20 6f 66 20 74 68 65 20 74 72 65 65 2e |ity of the tree.| 000008e0 0a 0a 52 45 53 4f 4c 55 54 49 4f 4e 20 52 45 44 |..RESOLUTION RED| 000008f0 55 43 54 49 4f 4e 20 2d 20 54 68 69 73 20 72 65 |UCTION - This re| 00000900 64 75 63 65 73 20 74 68 65 20 27 62 72 61 6e 63 |duces the 'branc| 00000910 68 20 73 69 64 65 73 27 20 61 6e 64 20 27 62 72 |h sides' and 'br| 00000920 61 6e 63 68 20 73 65 63 74 69 6f 6e 73 27 20 66 |anch sections' f| 00000930 6f 72 20 65 61 63 68 20 6c 61 79 65 72 20 6f 66 |or each layer of| 00000940 20 62 72 61 6e 63 68 65 73 2e 20 46 6f 72 20 61 | branches. For a| 00000950 20 6c 61 72 67 65 20 74 72 65 65 20 74 68 65 20 | large tree the | 00000960 6f 75 74 65 72 20 62 72 61 6e 63 68 65 73 20 61 |outer branches a| 00000970 72 65 20 6d 75 63 68 20 73 6d 61 6c 6c 65 72 20 |re much smaller | 00000980 74 68 61 6e 20 74 68 65 20 74 72 75 6e 6b 2c 20 |than the trunk, | 00000990 73 6f 20 64 6f 6e 27 74 20 6e 65 65 64 20 74 6f |so don't need to| 000009a0 20 62 65 20 6d 61 64 65 20 75 70 20 6f 66 20 61 | be made up of a| 000009b0 73 20 6d 61 6e 79 20 73 65 67 6d 65 6e 74 73 2e |s many segments.| 000009c0 20 53 69 6e 63 65 20 6d 6f 73 74 20 6f 66 20 74 | Since most of t| 000009d0 68 65 20 73 65 67 6d 65 6e 74 73 20 69 6e 20 61 |he segments in a| 000009e0 20 64 69 61 67 72 61 6d 20 61 72 65 20 69 6e 20 | diagram are in | 000009f0 74 68 65 20 62 72 61 6e 63 68 65 73 20 61 6e 64 |the branches and| 00000a00 20 6d 6f 73 74 20 6f 66 20 74 68 65 20 62 72 61 | most of the bra| 00000a10 6e 63 68 65 73 20 6f 66 20 61 20 74 72 65 65 20 |nches of a tree | 00000a20 61 72 65 20 69 6e 20 74 68 65 20 6f 75 74 65 72 |are in the outer| 00000a30 20 6c 61 79 65 72 2c 20 75 73 69 6e 67 20 74 68 | layer, using th| 00000a40 69 73 20 73 79 73 74 65 6d 20 63 61 6e 20 72 65 |is system can re| 00000a50 64 75 63 65 20 74 68 65 20 6e 75 6d 62 65 72 20 |duce the number | 00000a60 6f 66 20 73 65 67 6d 65 6e 74 73 20 75 73 65 64 |of segments used| 00000a70 20 69 6e 20 61 20 74 72 65 65 20 77 69 74 68 6f | in a tree witho| 00000a80 75 74 20 6d 61 6b 69 6e 67 20 69 74 20 6c 6f 6f |ut making it loo| 00000a90 6b 20 6e 6f 74 69 63 65 61 62 6c 79 20 64 69 66 |k noticeably dif| 00000aa0 66 65 72 65 6e 74 2e 20 49 74 20 69 73 20 77 6f |ferent. It is wo| 00000ab0 72 74 68 20 75 73 69 6e 67 20 61 74 20 6c 65 61 |rth using at lea| 00000ac0 73 74 20 31 20 68 65 72 65 2e 20 49 66 20 73 69 |st 1 here. If si| 00000ad0 64 65 73 20 61 6e 64 20 73 65 63 74 69 6f 6e 73 |des and sections| 00000ae0 20 73 74 61 72 74 20 76 65 72 79 20 6c 61 72 67 | start very larg| 00000af0 65 20 74 68 65 6e 20 32 20 6d 69 67 68 74 20 62 |e then 2 might b| 00000b00 65 20 77 6f 72 74 68 77 68 69 6c 65 2e 20 54 68 |e worthwhile. Th| 00000b10 65 20 70 72 6f 67 72 61 6d 20 72 61 6e 67 65 20 |e program range | 00000b20 63 68 65 63 6b 73 20 73 69 64 65 73 20 61 6e 64 |checks sides and| 00000b30 20 73 65 63 74 69 6f 6e 73 20 61 6e 64 20 77 69 | sections and wi| 00000b40 6c 6c 20 70 72 65 76 65 6e 74 20 74 68 65 6d 20 |ll prevent them | 00000b50 67 6f 69 6e 67 20 74 6f 6f 20 6c 6f 77 2e 0a 4e |going too low..N| 00000b60 6f 74 65 20 2d 20 74 68 69 73 20 64 6f 65 73 20 |ote - this does | 00000b70 4e 4f 54 20 63 68 61 6e 67 65 20 74 68 65 20 6f |NOT change the o| 00000b80 76 65 72 61 6c 6c 20 73 69 7a 65 20 6f 72 20 70 |verall size or p| 00000b90 6f 73 69 74 69 6f 6e 20 6f 66 20 74 68 65 20 62 |osition of the b| 00000ba0 72 61 6e 63 68 65 73 2c 20 6a 75 73 74 20 68 6f |ranches, just ho| 00000bb0 77 20 6d 61 6e 79 20 70 69 65 63 65 73 20 74 68 |w many pieces th| 00000bc0 65 79 20 61 72 65 20 63 68 6f 70 70 65 64 20 75 |ey are chopped u| 00000bd0 70 20 69 6e 74 6f 20 66 6f 72 20 70 6c 6f 74 74 |p into for plott| 00000be0 69 6e 67 2e 0a 0a 4c 45 41 46 20 47 45 4e 45 52 |ing...LEAF GENER| 00000bf0 41 54 49 4f 4e 53 20 2d 20 54 68 69 73 20 64 65 |ATIONS - This de| 00000c00 74 65 72 6d 69 6e 65 73 20 68 6f 77 20 6d 61 6e |termines how man| 00000c10 79 20 6f 66 20 74 68 65 20 67 65 6e 65 72 61 74 |y of the generat| 00000c20 69 6f 6e 73 20 6f 66 20 62 72 61 6e 63 68 65 73 |ions of branches| 00000c30 20 68 61 76 65 20 6c 65 61 76 65 73 20 6f 6e 2e | have leaves on.| 00000c40 20 32 20 69 73 20 67 65 6e 65 72 61 6c 6c 79 20 | 2 is generally | 00000c50 62 65 73 74 2c 20 69 66 20 31 20 28 6f 75 74 65 |best, if 1 (oute| 00000c60 72 6d 6f 73 74 20 62 72 61 6e 63 68 65 73 20 6f |rmost branches o| 00000c70 6e 6c 79 29 20 74 68 65 6e 20 74 68 65 20 66 6f |nly) then the fo| 00000c80 6c 69 61 67 65 20 6d 61 79 20 6c 6f 6f 6b 20 72 |liage may look r| 00000c90 61 74 68 65 72 20 73 70 61 72 73 65 2c 20 33 20 |ather sparse, 3 | 00000ca0 6f 72 20 6d 6f 72 65 20 61 6e 64 20 69 74 20 63 |or more and it c| 00000cb0 61 6e 20 62 65 20 68 61 72 64 20 74 6f 20 73 65 |an be hard to se| 00000cc0 65 20 61 6e 79 20 62 72 61 6e 63 68 65 73 20 61 |e any branches a| 00000cd0 74 20 61 6c 6c 2e 20 54 68 65 20 62 72 61 6e 63 |t all. The branc| 00000ce0 68 65 73 20 77 69 74 68 20 6c 65 61 76 65 73 20 |hes with leaves | 00000cf0 61 72 65 20 61 6c 77 61 79 73 20 74 68 65 20 6f |are always the o| 00000d00 75 74 65 72 6d 6f 73 74 20 67 65 6e 65 72 61 74 |utermost generat| 00000d10 69 6f 6e 73 2e 0a 0a 54 52 45 45 20 53 48 41 50 |ions...TREE SHAP| 00000d20 45 20 2d 20 54 68 69 73 20 63 68 61 6e 67 65 73 |E - This changes| 00000d30 20 74 68 65 20 6f 72 69 65 6e 74 61 74 69 6f 6e | the orientation| 00000d40 20 6f 66 20 74 68 65 20 62 72 61 6e 63 68 65 73 | of the branches| 00000d50 20 6f 66 20 74 68 65 20 74 72 65 65 2e 20 54 68 | of the tree. Th| 00000d60 65 20 6e 75 6d 62 65 72 73 20 68 61 76 65 20 6e |e numbers have n| 00000d70 6f 20 70 61 72 74 69 63 75 6c 61 72 20 6d 65 61 |o particular mea| 00000d80 6e 69 6e 67 2e 20 20 55 6e 6c 65 73 73 20 79 6f |ning. Unless yo| 00000d90 75 20 63 68 61 6e 67 65 20 74 68 69 73 20 6f 72 |u change this or| 00000da0 20 6f 6e 65 20 6f 66 20 74 68 65 20 6f 74 68 65 | one of the othe| 00000db0 72 20 73 65 74 74 69 6e 67 73 2c 20 63 6c 69 63 |r settings, clic| 00000dc0 6b 69 6e 67 20 61 67 61 69 6e 20 6f 6e 20 74 68 |king again on th| 00000dd0 65 20 44 72 61 77 20 62 75 74 74 6f 6e 20 77 69 |e Draw button wi| 00000de0 6c 6c 20 70 72 6f 64 75 63 65 20 65 78 61 63 74 |ll produce exact| 00000df0 6c 79 20 74 68 65 20 73 61 6d 65 20 74 72 65 65 |ly the same tree| 00000e00 28 73 29 2e 20 57 69 74 68 20 6d 75 6c 74 69 70 |(s). With multip| 00000e10 6c 65 20 74 72 65 65 73 2c 20 74 68 65 20 70 6f |le trees, the po| 00000e20 73 69 74 69 6f 6e 73 20 6f 66 20 74 68 65 20 74 |sitions of the t| 00000e30 72 65 65 73 20 6f 6e 20 74 68 65 20 74 65 72 72 |rees on the terr| 00000e40 61 69 6e 20 61 72 65 20 72 61 6e 64 6f 6d 20 2d |ain are random -| 00000e50 20 65 61 63 68 20 74 69 6d 65 20 74 68 65 20 70 | each time the p| 00000e60 69 63 74 75 72 65 20 69 73 20 64 72 61 77 6e 20 |icture is drawn | 00000e70 74 68 65 20 74 72 65 65 73 20 77 69 6c 6c 20 62 |the trees will b| 00000e80 65 20 69 6e 20 64 69 66 66 65 72 65 6e 74 20 70 |e in different p| 00000e90 6c 61 63 65 73 2e 0a 0a 4c 45 41 46 20 53 49 5a |laces...LEAF SIZ| 00000ea0 45 20 61 6e 64 20 4e 55 4d 42 45 52 20 4c 45 41 |E and NUMBER LEA| 00000eb0 56 45 53 20 2d 20 54 68 65 73 65 20 63 6f 6e 74 |VES - These cont| 00000ec0 72 6f 6c 20 74 68 65 20 6c 65 61 76 65 73 20 74 |rol the leaves t| 00000ed0 68 61 74 20 61 70 70 65 61 72 20 6f 6e 20 45 41 |hat appear on EA| 00000ee0 43 48 20 61 70 70 72 6f 70 72 69 61 74 65 20 62 |CH appropriate b| 00000ef0 72 61 6e 63 68 2e 20 49 66 20 79 6f 75 20 69 6e |ranch. If you in| 00000f00 63 72 65 61 73 65 20 6f 6e 65 20 69 74 20 69 73 |crease one it is| 00000f10 20 62 65 73 74 20 74 6f 20 64 65 63 72 65 61 73 | best to decreas| 00000f20 65 20 74 68 65 20 6f 74 68 65 72 20 74 6f 20 6b |e the other to k| 00000f30 65 65 70 20 74 68 65 20 6f 76 65 72 61 6c 6c 20 |eep the overall | 00000f40 61 6d 6f 75 6e 74 20 6f 66 20 66 6f 6c 69 61 67 |amount of foliag| 00000f50 65 20 61 62 6f 75 74 20 63 6f 6e 73 74 61 6e 74 |e about constant| 00000f60 2e 0a 0a 54 52 45 45 20 53 45 50 41 52 41 54 49 |...TREE SEPARATI| 00000f70 4f 4e 20 2d 20 54 68 69 73 20 63 6f 6e 74 72 6f |ON - This contro| 00000f80 6c 73 20 74 68 65 20 6d 69 6e 69 6d 75 6d 20 73 |ls the minimum s| 00000f90 70 72 65 61 64 69 6e 67 20 6f 66 20 74 68 65 20 |preading of the | 00000fa0 74 72 65 65 73 20 61 6e 64 20 6f 66 20 74 68 65 |trees and of the| 00000fb0 20 63 6f 6e 74 72 6f 6c 20 70 6f 69 6e 74 73 20 | control points | 00000fc0 69 6e 20 74 68 65 20 74 65 72 72 61 69 6e 2e 20 |in the terrain. | 00000fd0 54 68 65 20 75 6e 69 74 73 20 61 72 65 20 61 72 |The units are ar| 00000fe0 62 69 74 72 61 72 79 2c 20 62 75 74 20 74 68 65 |bitrary, but the| 00000ff0 20 73 79 73 74 65 6d 20 77 6f 72 6b 73 20 69 6e | system works in| 00001000 20 74 65 72 72 61 69 6e 20 62 6c 6f 63 6b 73 20 | terrain blocks | 00001010 28 69 6e 64 65 70 65 6e 64 61 6e 74 20 6f 66 20 |(independant of | 00001020 74 68 65 20 73 69 7a 65 20 74 68 65 73 65 20 61 |the size these a| 00001030 72 65 20 6f 6e 20 73 63 72 65 65 6e 29 2e 20 54 |re on screen). T| 00001040 68 75 73 20 69 6e 63 72 65 61 73 69 6e 67 20 74 |hus increasing t| 00001050 68 65 20 67 72 61 73 73 20 73 65 67 6d 65 6e 74 |he grass segment| 00001060 20 73 69 7a 65 20 77 69 6c 6c 20 61 6c 73 6f 20 | size will also | 00001070 6d 61 6b 65 20 74 68 65 20 74 72 65 65 73 20 66 |make the trees f| 00001080 75 72 74 68 65 72 20 61 70 61 72 74 20 6f 6e 20 |urther apart on | 00001090 74 68 65 20 73 63 72 65 65 6e 2e 20 49 66 20 74 |the screen. If t| 000010a0 68 65 20 70 72 6f 67 72 61 6d 20 63 72 65 61 74 |he program creat| 000010b0 65 73 20 61 6e 20 65 72 72 6f 72 20 27 46 61 69 |es an error 'Fai| 000010c0 6c 65 64 20 74 6f 20 66 69 6e 64 20 73 75 69 74 |led to find suit| 000010d0 61 62 6c 65 20 70 6f 73 69 74 69 6f 6e 73 20 66 |able positions f| 000010e0 6f 72 20 74 72 65 65 2d 74 72 75 6e 6b 73 20 61 |or tree-trunks a| 000010f0 6e 64 2f 6f 72 20 74 65 72 72 61 69 6e 2e 27 20 |nd/or terrain.' | 00001100 77 68 65 6e 20 74 72 79 69 6e 67 20 74 6f 20 64 |when trying to d| 00001110 72 61 77 2c 20 74 68 65 6e 20 74 68 69 73 20 73 |raw, then this s| 00001120 65 74 74 69 6e 67 20 77 61 73 20 74 6f 6f 20 68 |etting was too h| 00001130 69 67 68 2e 0a 0a 0a 0a 4d 65 6d 6f 72 79 2d 2d |igh.....Memory--| 00001140 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00001170 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 0a 49 66 |------------..If| 00001180 20 74 68 65 20 74 72 65 65 20 79 6f 75 20 68 61 | the tree you ha| 00001190 76 65 20 73 65 6c 65 63 74 65 64 20 6e 65 65 64 |ve selected need| 000011a0 73 20 6d 6f 72 65 20 6d 65 6d 6f 72 79 20 74 68 |s more memory th| 000011b0 61 6e 20 69 73 20 61 76 61 69 6c 61 62 6c 65 2c |an is available,| 000011c0 20 74 68 65 6e 20 61 20 77 61 72 6e 69 6e 67 20 | then a warning | 000011d0 77 69 6c 6c 20 61 70 70 65 61 72 20 69 6e 20 74 |will appear in t| 000011e0 68 65 20 62 6f 78 20 61 74 20 74 68 65 20 74 6f |he box at the to| 000011f0 70 20 72 69 67 68 74 20 6f 66 20 74 68 65 20 6f |p right of the o| 00001200 70 74 69 6f 6e 73 20 77 69 6e 64 6f 77 2e 20 54 |ptions window. T| 00001210 68 65 20 73 65 74 74 69 6e 67 73 20 73 68 6f 75 |he settings shou| 00001220 6c 64 20 62 65 20 63 68 61 6e 67 65 64 20 75 6e |ld be changed un| 00001230 74 69 6c 20 74 68 69 73 20 67 6f 65 73 20 61 77 |til this goes aw| 00001240 61 79 2e 0a 49 66 20 73 68 6f 72 74 20 6f 66 20 |ay..If short of | 00001250 6d 65 6d 6f 72 79 20 72 65 64 75 63 65 20 74 68 |memory reduce th| 00001260 65 20 73 65 74 74 69 6e 67 73 20 42 72 61 6e 63 |e settings Branc| 00001270 68 20 73 65 63 74 69 6f 6e 73 20 61 6e 64 20 73 |h sections and s| 00001280 69 64 65 73 20 61 6e 64 2f 6f 72 20 69 6e 63 72 |ides and/or incr| 00001290 65 61 73 65 20 52 65 73 6f 6c 75 74 69 6f 6e 20 |ease Resolution | 000012a0 52 65 64 75 63 69 6f 6e 2e 20 54 68 69 73 20 77 |Reducion. This w| 000012b0 69 6c 6c 20 64 65 63 72 65 61 73 65 20 74 68 65 |ill decrease the| 000012c0 20 6d 65 6d 6f 72 79 20 6e 65 65 64 65 64 20 66 | memory needed f| 000012d0 6f 72 20 65 61 63 68 20 62 72 61 6e 63 68 2e 20 |or each branch. | 000012e0 54 68 65 20 6d 65 6d 6f 72 79 20 75 73 65 64 20 |The memory used | 000012f0 6f 6e 20 6c 65 61 76 65 73 20 61 6e 64 20 74 68 |on leaves and th| 00001300 65 20 67 72 61 73 73 20 69 73 20 6e 6f 72 6d 61 |e grass is norma| 00001310 6c 6c 79 20 66 61 69 72 6c 79 20 69 6e 73 69 67 |lly fairly insig| 00001320 6e 69 66 69 63 61 6e 74 2e 0a 0a 54 68 65 20 61 |nificant...The a| 00001330 6d 6f 75 6e 74 20 6f 66 20 6d 65 6d 6f 72 79 20 |mount of memory | 00001340 61 6c 6c 6f 63 61 74 65 64 20 74 6f 20 54 72 65 |allocated to Tre| 00001350 65 73 20 63 61 6e 20 62 65 20 69 6e 63 72 65 61 |es can be increa| 00001360 73 65 64 20 6f 72 20 64 65 63 72 65 61 73 65 64 |sed or decreased| 00001370 20 62 79 20 64 72 61 67 67 69 6e 67 20 69 74 73 | by dragging its| 00001380 20 62 61 72 20 69 6e 20 74 68 65 20 54 61 73 6b | bar in the Task| 00001390 20 6d 61 6e 61 67 65 72 27 73 20 6d 65 6d 6f 72 | manager's memor| 000013a0 79 20 64 69 73 70 6c 61 79 2e 20 20 54 6f 20 73 |y display. To s| 000013b0 69 6d 70 6c 79 20 67 72 61 62 20 61 6c 6c 20 74 |imply grab all t| 000013c0 68 65 20 73 70 61 72 65 20 6d 65 6d 6f 72 79 20 |he spare memory | 000013d0 69 6e 20 74 68 65 20 6d 61 63 68 69 6e 65 20 63 |in the machine c| 000013e0 6c 69 63 6b 20 6f 6e 20 74 68 65 20 43 6c 61 69 |lick on the Clai| 000013f0 6d 20 62 75 74 74 6f 6e 20 69 6e 20 74 68 65 20 |m button in the | 00001400 6f 70 74 69 6f 6e 73 20 77 69 6e 64 6f 77 2e 0a |options window..| 00001410 54 72 65 65 73 20 77 69 6c 6c 20 70 72 6f 62 61 |Trees will proba| 00001420 62 6c 79 20 6e 65 65 64 20 61 74 20 6c 65 61 73 |bly need at leas| 00001430 74 20 31 4d 42 20 74 6f 20 64 6f 20 61 6e 79 74 |t 1MB to do anyt| 00001440 68 69 6e 67 20 77 6f 72 74 68 77 68 69 6c 65 2e |hing worthwhile.| 00001450 0a 0a 0a 54 69 6d 65 2d 2d 2d 2d 2d 2d 2d 2d 2d |...Time---------| 00001460 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00001490 2d 2d 2d 2d 2d 2d 2d 0a 0a 45 76 65 6e 20 61 20 |-------..Even a | 000014a0 63 6f 6d 70 6c 65 78 20 74 72 65 65 20 6f 6e 20 |complex tree on | 000014b0 61 20 73 6c 6f 77 65 72 20 6d 61 63 68 69 6e 65 |a slower machine| 000014c0 20 73 68 6f 75 6c 64 20 6e 6f 74 20 74 61 6b 65 | should not take| 000014d0 20 6d 6f 72 65 20 74 68 61 6e 20 61 20 66 65 77 | more than a few| 000014e0 20 6d 69 6e 75 74 65 73 20 74 6f 20 64 72 61 77 | minutes to draw| 000014f0 2e 20 20 4d 61 6e 79 20 74 72 65 65 73 20 77 69 |. 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