Status code: sharp to smooth

[Bruce Walker]

What’s the trick to transitioning from a sharp edge to a smoothed edge? I want sharp edges at the curve ends, but smoothed edges within the curve itself (see attached images).

Code

	PRISM_ 7, 1,
		0, 0, 15,
		0, 1, 15,
		0.25, 1, 15,
		0.5, 1, 900,
		0, 180, 4015,
		1, 1, 15,
		1, 0, 15

Attachments:

1. 

   2019-04-13_17-15-39.jpg
   

2. 

   2019-04-13_17-15-14.jpg
   

www.brucepwalker.com
https://www.mindmeister.com/65450406

AC20 6005 AUS Full & AC 21 3009 NZE Full | Win 10 Pro 64 | Intel i7-7700HQ 2.80GHz | 16 Gb RAM
NVIDIA GeForce GTX 1060 8Mb

[Péter Baksa]

Hi,

the trick is CPRISM_{3} with mask 8.

CPRISM_{3} 0, 0, 0,
		8, 7, 1,
		0,	0,	0, 15,		0,
		0,	1,	0, 15,		0,
		0.25,	1,	0, 15,		0,
		0.5,	1,	0, 900,		0,
		0,	180,	0, 4015,	0,
		1,	1,	0, 15,		0,
		1,	0,	0, 15,		0

Péter Baksa
Library Platform, Software Engineer
GRAPHISOFT SE

[Bruce Walker]

Thanks Peter – this is it.

Is there a way to set the material for the whole CPRISM without having to set it for each line (I don’t think so)? With the code you’ve supplied (thank you), a preceding MATERIAL command will only set the top and bottom materials.

Also, the ‘side_material’ listing at the command level seems redundant, as this has to be set for each coordinate line. Am I reading this right?

Attachments:

1. 

   2019-04-19_10-41-48.jpg
   

www.brucepwalker.com
https://www.mindmeister.com/65450406

AC20 6005 AUS Full & AC 21 3009 NZE Full | Win 10 Pro 64 | Intel i7-7700HQ 2.80GHz | 16 Gb RAM
NVIDIA GeForce GTX 1060 8Mb

[Péter Baksa]

You have to set the material on each edge, 0 uses the current pen. Yes, side_material looks redundant, I don’t know why it is there.

Péter Baksa
Library Platform, Software Engineer
GRAPHISOFT SE

[Piotr Dobrowolski]

There is a “quick and dirty” way to make the “all in one” surface material on anything…it may slow down the object:
The trick uses the container as in bolean operations: the last one with the smallest description ;P : CREATEGROUPWITHMATERIAL

Piotr

[Author]

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