topic Re: How to Erithage Material (surface) from the "base group" using SUBGROUP{3} in GDL in GDL

How to inherit Material (surface) from the "base group" using SUBGROUP{3} in GDL

Mario Sacco — Tue, 24 Sep 2024 08:13:38 GMT

I can't find a solution to inherit the material from the "base group" in GDL.

The code I made, always attribuites to the cut polygons the material of the "tool group"

I'd like to have the cubes inherit their own material

PEN 1 GROUP "A" MATERIAL 5 BLOCK 1,1,1 ADDX 1.1 MATERIAL 4 BLOCK 1,1,1 DEL 1 ENDGROUP GROUP "B" MATERIAL 7 ADD .5,.5,.5 BLOCK 1,1,1 DEL 1 MATERIAL 6 ADD -.7,.5,.5 BLOCK 1,1,1 DEL 1 ENDGROUP PLACEGROUP SUBGROUP{3} ("A","B",0,0,0,0)

Re: How to Erithage Material (surface) from the "base group" using SUBGROUP{3} in GDL

MF BIM — Fri, 20 Oct 2023 19:59:50 GMT

Hello @Mario Sacco ,

You need to input the materialId value in the 4th argument of the subgroup command. If you want each block to have its own material then you would need to have as many base groups and subgroup commands.

PEN 1 MAT_1 = 5 MAT_2 = 4 GROUP "A1" MATERIAL MAT_1 BLOCK 1,1,1 ENDGROUP GROUP "A2" ADDX 1.1 MATERIAL MAT_2 BLOCK 1,1,1 DEL 1 ENDGROUP GROUP "B" MATERIAL 7 ADD .5,.5,.5 BLOCK 1,1,1 DEL 1 MATERIAL 6 ADD -.7,.5,.5 BLOCK 1,1,1 DEL 1 ENDGROUP PLACEGROUP SUBGROUP{3} ("A1", "B", 0, MAT_1, 0, 0) PLACEGROUP SUBGROUP{3} ("A2", "B", 0, MAT_2, 0, 0)

Re: How to Erithage Material (surface) from the "base group" using SUBGROUP{3} in GDL

Mario Sacco — Sat, 21 Oct 2023 05:16:42 GMT

This solution is ok if I can separate the single objects.

My code include hundreds of objects with different colours and I need execute the subtraction only one.

As you can see the are many panels and the side cutted volumes have an incorrect surface.

I probably will try to use CUTPOLY for my problem, but for complex operation it can't work.

Re: How to Erithage Material (surface) from the "base group" using SUBGROUP{3} in GDL

MF BIM — Sat, 21 Oct 2023 11:33:13 GMT

@Mario Sacco,

You could use arrays and iterate through them, maybe. Probably not very efficient but it'll work.

pen 1 NUM_BLOCKS = 4 dim names[] dim mats[] mats[1] = 5 mats[2] = 4 mats[3] = 3 mats[4] = 2 for NUM = 1 to NUM_BLOCKS names[NUM] = "A" + str(NUM, 1, 0) ! A1, A2... group names[NUM] addx 1.1*(NUM-1) material mats[NUM] block 1,1,1 del 1 endgroup next NUM group "B" for NUM = 1 to NUM_BLOCKS material 6 add -.7+(1.2*(NUM-1)),.5,.5 block 1,1,1 del 1 next NUM endgroup for NUM = 1 to NUM_BLOCKS placegroup subgroup{3} (names[NUM], "B", 0, mats[NUM], 0, 0) next NUM

Re: How to Erithage Material (surface) from the "base group" using SUBGROUP{3} in GDL

Mario Sacco — Sat, 21 Oct 2023 14:57:36 GMT

This is the code using CUTPOLYA. It works fine but you can use only an extrusion as subtraction.

PEN 1 CUTPOLYA 11,1,0, -1,-1,15, -1,11,15, 11,11,15, 11,-1,15, -1,-1,15, 1,1,15, 7,2,15, 8,7,15, 2,8,15, 1,1,15, -1,-1,15 MATERIAL 2 BLOCK 4,10,1 ADDX 5 MATERIAL 3 BLOCK 5,10,1 CUTEND