https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397810#M5553 <P>You can request the RGB of a pen or material (surface) as these are a single colour, but not of a picture.</P> <P>Every pixel of a picture could be a different colour.</P> <P>Archicad just imports the picture you tell it to, and as far as I know there is no way to interrogate the colour of individual pixels.</P> <P>&nbsp;</P> <P>Barry.</P> Mon, 11 Sep 2023 08:18:36 GMT Barry Kelly 2023-09-11T08:18:36Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397809#M5552 <P>May I ask how to use REQUEST {2}?</P> <P>Can I obtain the brightness of a coordinate point on the picture using the REQUEST {2} command?</P> <P>The brightness or red, green, and blue values of the coordinate points on the picture.</P> <P>&nbsp;</P> <P>GDL seems to have relatively weak processing power for pictures.</P> Thu, 26 Sep 2024 11:50:08 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397809#M5552 yongler 2024-09-26T11:50:08Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397810#M5553 <P>You can request the RGB of a pen or material (surface) as these are a single colour, but not of a picture.</P> <P>Every pixel of a picture could be a different colour.</P> <P>Archicad just imports the picture you tell it to, and as far as I know there is no way to interrogate the colour of individual pixels.</P> <P>&nbsp;</P> <P>Barry.</P> Mon, 11 Sep 2023 08:18:36 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397810#M5553 Barry Kelly 2023-09-11T08:18:36Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397904#M5603 <P>Okay, there's still a little disappointment</P> Tue, 12 Sep 2023 00:41:31 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397904#M5603 yongler 2023-09-12T00:41:31Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397908#M5604 <P>When you say 'Picture' I assume you are meaning an image file (.jpg, .tif, .png, etc).</P> <P>&nbsp;</P> <P>Barry.</P> Tue, 12 Sep 2023 00:57:45 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397908#M5604 Barry Kelly 2023-09-12T00:57:45Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397944#M5613 <P>I assume this has got to do with using gradients to control dynamic objects?</P> Tue, 12 Sep 2023 08:12:45 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/397944#M5613 Lingwisyer 2023-09-12T08:12:45Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/398318#M5627 <P>You can try to convert the bitmap file to a .txt file that a GDL object can read.</P> <P>But that means a lot of work.&nbsp;</P> Fri, 15 Sep 2023 06:23:47 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/398318#M5627 Pertti Paasky 2023-09-15T06:23:47Z https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/398321#M5628 <P>...And very non user friendly...</P> Fri, 15 Sep 2023 06:57:50 GMT https://community.graphisoft.com/t5/GDL/Can-I-obtain-the-brightness-of-a-coordinate-point-on-the-picture/m-p/398321#M5628 Lingwisyer 2023-09-15T06:57:50Z