Processing 1.0 - Processing Discourse - Saving a background image after it has loaded

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Index › Programming Questions & Help › Programs › Saving a background image after it has loaded

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Saving a background image after it has loaded (Read 1050 times)

Augusto

Saving a background image after it has loaded
Apr 2^nd, 2010, 3:24am

I'm loading a map from Bing Maps using modestmaps. I'm trying to cache it on my computer so I won't be loading it over and over again. Doing:

Code:

if (drawMap) {
   map.draw();
   save("map.png");
   drawMap = false;
   mapBackground = loadImage("map.png");
} else {
	image(mapBackground, 0, 0);
}

Saves a white picture, since the map doesn't have time to load. Using delay also doesn't work :/

Ned YaBB Newbies Offline Posts: 5	Re: Saving a background image after it has loaded Reply #1 - Apr 2^nd, 2010, 3:49pm I'm pretty new to this stuff but it looks like the save command comes before the map is drawn?

Augusto Junior Member Offline Posts: 55 Portugal	Re: Saving a background image after it has loaded Reply #2 - Apr 3^rd, 2010, 4:26am Ned wrote on Apr 2^nd, 2010, 3:49pm: I'm pretty new to this stuff but it looks like the save command comes before the map is drawn But I want to save the drawn map, then use the cached image without drawing the map again.

Augusto

Re: Saving a background image after it has loaded
Reply #3 - Apr 6^th, 2010, 8:16am

Since it seems that there's no specific code for what I wanted, I went around it. Here's the code if someone's interested:

Code:

// Draws the map
if (drawMap) {
    imageMode(CORNER);
    map.draw();
    timerMap++;
} // Caches the map
if (timerMap > 20 && !drawCache) {
    drawMap = false;
    save("data/cache/map.png");
    backgroundMap = loadImage("data/cache/map.png");
    drawCache = true;
} // Loads the background from the cache
if (drawCache) {
    imageMode(CORNER);
    image(backgroundMap, 0, 0);
}

Giles Senior Member Offline Posts: 252	Re: Saving a background image after it has loaded Reply #4 - Apr 6^th, 2010, 8:30am Interesting...I'm also playing around with this and would be interested in figuring out how you would put the map directly into a PImage without drawing it to screen first...any ideas?

Augusto

Re: Saving a background image after it has loaded
Reply #5 - Apr 7^th, 2010, 2:30am

Giles wrote on Apr 6^th, 2010, 8:30am:

Interesting...I'm also playing around with this and would be interested in figuring out how you would put the map directly into a PImage without drawing it to screen first...any ideas

Problem is, there's no documentation on modestmaps for processing. Maybe looking at what the code looks like for Python.

Giles Senior Member Offline Posts: 252	Re: Saving a background image after it has loaded Reply #6 - Apr 7^th, 2010, 1:45pm Or maybe Tom could release some Processing documentation....please???......

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