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Polys/polylines/lines
To create a poly/polyline/line, click to position each point and either doubleclick or press the middle or right mouse button to end. You can alter the surface
type later from the control panel if you need a different type.
These objects consist of a list of vertices and a single surface. It’s possible to
‘merge’ these surfaces into larger objects. To help with lining up points with
existing points, use the ‘near-snap function (toggle a the bottom of the AC3D
window)-this automatically pulls new points to the nearest.
Polygons should be 3 or more points. Concave polygons are handled by AC3D.
They can be converted to triangles by using the Surface->triangulate function.
It is actually possible to draw a line or poly in different windows - creating a
non planar object. This is fine with lines but is not correct for a polygon which
should have all it's points on the same plane.
Sphere’s boxes etc.
Dragging in a window allows you to specify two of the dimensions for the new
object - the third is specified from the 3D cursor. You can move this by holding
ALT down and dragging the cross around with the mouse. This specifies the
missing position. Most people never use this because it's easy enough to create
an object and position it where you want.
Some objects allow parameters to be set
before creating the object. E.g. spheres and
Meshes can be made from triangles or quads.
Controls for any available parameters will
appear in the control panel underneath the
mode box.
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