API_Coord to API_Transmat

kristkun — Mon, 16 Sep 2024 12:48:59 GMT

Hi

Anyone has an idea how can i place/create a hotlink element based on 2D API_Coord (x and y positions)?
I did some testing and for an Object Element, the position is referenced to the Project Origin (If my understanding is correct)
Red = Project Origin
Green = User Origin
Where Obj pos.x = ~0.0 and pos.y = ~0.0

But when I created a hotlink element with x=0, y=0, z=0 coordinates it was placed here

Im using this code from the example references to convert 3d coordinates to API_Transmat

static API_Tranmat CreateTransformation(const API_Coord3D& origin, const double rotAngle) { API_Tranmat transformation = {}; const double co = cos(rotAngle); const double si = sin(rotAngle); // we need an orthogonal transformation // origin transformation.tmx[3] = origin.x; transformation.tmx[7] = origin.y; transformation.tmx[11] = origin.z; // X axis transformation.tmx[0] = co; transformation.tmx[4] = si; transformation.tmx[8] = 0.0; // Y axis transformation.tmx[1] = -si; transformation.tmx[5] = co; transformation.tmx[9] = 0.0; // we need a valid Z axis as well transformation.tmx[2] = 0.0; transformation.tmx[6] = 0.0; transformation.tmx[10] = 1.0; return transformation; }

topic API_Coord to API_Transmat in Archicad C++ API

API_Coord to API_Transmat