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Archicad C++ API
About Archicad add-on development using the C++ API.

[SOLVED] Rotate placement

Anonymous
Not applicable
This will be hard to explain, hope it makes sense.

When i place object it has defined x, y, z position. So when i need to place in different angle. For example if i rotate 90° i need y= to be x and x= to be y. It get's even more complicated when i need to rotate 45°.
So object get's placed in right position when placed in different angle.
Is there any useful functions to assist this?
2 REPLIES 2
Tibor Lorantfy
Graphisoft Alumni
Graphisoft Alumni
Hi,

yes, Geometry module helps with this kind of calculations.
You can use TMRotatePoint for example to rotate a point with an angle:
#include "Point3DData.h" // you need Geometry modul 
 
void RotatePoint (const Vector3D& origo, const Vector3D& axis, double angleDEG, double* x, double* y, double* z) 
{ 
	Geometry::TMRotatePoint (origo.x, origo.y, origo.z, 
								axis.x, axis.y, axis.z, 
								angleDEG * DEGRAD, 
								x, y, z); 
} 
 
// Usage: 
RotatePoint (Vector3D (0.0, 0.0, 0.0), Vector3D (0.0, 0.0, 1.0), 45.0, &x, &y, &z);


This example rotates the coordinates around the Z axis with 45 degrees.

Regards,
Tibor
Anonymous
Not applicable
Thanks Tibor.

Couldn't find solution calculated each >0>90>180>360 section coordinates, , long code...

And this takes just few rows Thanks.

Will change to this now.

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