 FAQ
 General
Errors
Hardware
General
» How to render a wire frame model?
If you have the exact values of a point (X/Y/Z) you may use the component TVisPolygon. Each
point should be added with the following code:
VisPolygon.AddValues(x,y,z,s,t);
VisPolygon.filled=false constructs the wire-frame-model.
» How to render a 3D diagram?
Signsoft VisIt generally provides 2 possibilities for rendering 3d diagrams.
1.) The component TVisPointSet accepts an array of Integer or Double values. As result it
constructs a three dimensional surface. The given data can either be only height values or complete
3d points. Whether only height values are given the component will automatically calculate a
regular grid and connect the points.
2.) The TVisFuncObj component expects the data as results of their two events OnCalcZ and
OnCalcXY. Here it is necessary to return the complete point. This means that no regular grid will
be calculated automatically .
» Rotating an object with respect to a point
First, set the transformation order of the object to a defined value, i.e. trScaTraRot. Now the
object will be at first rotated then moved and at least scaled.
» Rotating and moving an object several times.
The object should be inserted into a TVisNode object. Now the object can be rotated with
respect to another object and at the same time with respect to itself.
Errors
» Unit visobj was compiled with a different version of visclass.TVisTransformed
An older version of VisIt is already installed. Please remove the path to the libraries of the
older version within your IDE (menu: tools-environment options-library).
» Black areas while resizing the view
This is an known Win2000 bug. See also Microsoft Support Knowledge Base Article ID Q272222.
» The dynamic link library 'visc4c?.bpl' was not found on the path.
Either you can disable "Use dynamic Runtime Packages" or you can copy the named library to the
Windows library search path (i.e., Borland\CBuilder5\Projects\BPL\).
» Runtime errors while running examples.
This problem occours in the most cases by using older graphic card drivers. However, not every
driver supports OpenGL as expected. Please install an newer version of the driver.
Hardware
» Graphic Accelerator
For complex scenarios a modern graphic accelerator is suggested (for instance GeForce3 or better).
However, an updated and stable graphic card driver is mostly better than a powerful CPU.
» Is Signsoft VisIt Win2000 compatible?
Yes, Signsoft VisIt is Windows 2000 compatible.
» Is Signsoft VisIt WinXP compatible?
Yes, Signsoft VisIt is Windows XP compatible.
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