formenspiel slides

Perspektive und Foto

lesson 6: generating a3D-mass-model using a 2D-DWG-plan in C4D

edit ~ 0 kommentare/fragen ~ 10. Mai 2015 21:32

Dear Seminar participants,

the dwg-fileonly contains 2d-informations. For it is not to be opened within C4D R12, I reconverted and saved it in ArchiCAD 18 under GAZA.dwg. Now you can use it in C4D R12.

After opening the browser shows a huge list of 2d-Objects. Using the layer-browser (Shift F4) make all layers invisible but not the buildings-layer. Now make some empty objects (for each quartier one). Fill the Quartiers with the fitting Polyline objects (each building has a polyline Object which contains 4 ore more polylines. Make a new layer for each quartier in the layer-manager.

In google earth have a look at the buildings shadow lengths to imagine the different building heights. For each quartier sort the polyline folders (building ground plans) into about three folders (one, two and three floors).
Converte all the Polyline folders of the same floor number to splines using the "Grundobjekte konvertieren" tool.

activate all splines of the same floor number and use the function "verbinden und löschen" (connect and delete) to make one multiple sprite object from them. Create an Extrude Nurbs object and put the connected sprite in it. Fill in the extrusions height (y-value of the Extrusions objects attributes) and delete the 200 in the Z-value to 0. Continue the last steps for each group of splines with different floor numbers.

The satellite foto as background picture into the ground view is already calibrated (without aspect automatic) with the cites dwg but will not appear till you load the hires background image into the ground views background. to do this download bayt-Hanun_left and -right to Photoshop to connect the two half images again. Make a new Material using the same background picture. Make a new Ebene-object and use the last created material for it and convert ist to a polyobject. Adjust the the sattelitefoto with the help of the Ground views background picture. Use the activated material tag of the Ebebe to fit the material size to the Ebene-object.

The polylines of the first 29 quartiers are already separated and converted into splines. The splines of quartier 25 are already added and extruded to 6m. The single splines are still there. Have a look to step 1-5 (quartier1) to learn how the workflow from dwg-polyline to C4D extrusion object runs.

These are the essential steps to generate a 3D-City model from a 2D dwg plan.
best regards
Prof. Andreas Kästner

GAZA.dwg Stadtmodell nach DWG.c4d


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