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FFISCH'S 3D LIB V.0.1b
by TakeFlight Prod. (flyingfisch), 2012
Licensed under the CC share-alike license
==Contents==
[1] For Developers
1.1 Usage
1.2 The Functions
[2] Using the demo
==For Developers==
===Usage===
To use this library simply copy and paste the code in ./src/src-full.lua into your program.
===The Functions===
ff3d.return3dPoint(point, angle, move, cam, scale, piv, pmode)
Returns a 2d array {x,y} for a 3d array {x,y,z}.
point - the 3d point data. Should be in this form:
point = {x=<x_pos>,y=<y_pos>,z=<z_pos>}
angle - object rotation around point piv. Should be in this form:
angle = {x=<x angle>,y=<y angle>,z=<z angle>}
move - move object relative to screen. this moves it as if it were on a piece of paper. Should be in this form:
move = {x=<move in x direction (relative to screen)>,y=<move in y direction (relative to screen)>}
cam - camera placement. should be in this form:
cam = {x=<x_pos>,y=<y_pos>,z=<z_pos>}
scale - scale factor (zoom). the larger the number, the further away the object appears.
piv - pivot point. should be in form:
piv = {x=<x_pos>,y=<y_pos>,z=<z_pos>}
pmode - perspective mode. if 1, then perspective mode is enabled, if not, then isometric mode is used.
ff3d.drawWireframe(pointData,lineData,colorData)
draws lines according to lineData.
pointData - data for points. should be in this form:
pointData={{x1,y1},{x2,y2},{x3,y3}...}
lineData - data for what points should be connected. the numbers correspond with the cells in pointData. for instance, this would connect points 1 and 2, and points 2 and 3.
lineData={{1,2},{2,3}}
colorData - colors of lines. if empty, black is used. must have the same amount of cells as lineData. the following code would make lines 1 and 2 black:
colorData={makeColor("black"),makeColor("black")}
==Using the demo==
Run in LuaZM.
Keys:
cursor keys: pan
f1, f2: zoom in/out
f3, f4: change z rotation
f5, f6: change x rotation
numpad 4,6,8,2: move camera
optn: toggle perspective mode
exit: exit program.
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