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DarkBASIC Professional Discussion / Quick question about making images larger than screen resolution with DBPro

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Bluespark
15
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Joined: 18th Mar 2011
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Posted: 6th Aug 2011 02:11
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In order to make a large maze image using only black and white, and save it to png, how would this be done?

I'm not asking for the maze generating algorithm, I'm already experienced with that. I'm asking for once I generated the maze, how would I save it as a 5000x5000 resolution png image?
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wickedly kick it
19
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Posted: 6th Aug 2011 03:24
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5000x5000? Only thing i can think of is save it in pieces using get image and merge em.

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Neuro Fuzzy
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Posted: 6th Aug 2011 03:54
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memblock image -> make image from memblock -> save image?


Why does blue text appear every time you are near?
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Phaelax
DBPro Master
23
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Posted: 6th Aug 2011 05:58
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What neuro said. You could also look into using ImageKit

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KISTech
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Posted: 6th Aug 2011 06:25
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If it's just black and white, I would build it with sprites made from just a black square and a white square. You could make the map in a text file filled with 0s and 1s. The 1s representing white squares.

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WLGfx
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Posted: 6th Aug 2011 15:27 Edited at: 6th Aug 2011 15:29
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As far as I know the only restriction on image sizes is only for use as textures on 3d objects. So having an image 5000 x 5000 shouldn't be a problem.

If you're using it to create a maze then granted, you would have to read it in chunks to save on memory usage and for speed. I'm sure the image size could even go much bigger than that.

EDIT: even a 4 colour bitmap could store a bit more information than a 2 colour one. ie, wall, floor, zones and pick ups.

Warning! May contain Nuts!
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DVader
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Posted: 6th Aug 2011 17:20
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Yupp WLGfx bet me too it. It is no problem to "create bitmap 1,5000,5000" in DB for instance. I have often used a larger bitmap than the screen size to get easy scrolling effects. It probably depends on your video card as to your exact limits, but a decent desktop should cope with 8192x8192 res if you really need it that big. If you find you cannot make a file that big it will be a video memory issue. Netbooks for instance are unlikely to support that large an image.
So you should be able to generate the maze and simply save the image...

http://s6.bitefight.org/c.php?uid=103081
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