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Description
swerno092 asked me to explain how bitmapData. I started to create small fla that creates bmp and fills it acording to some function. I played a little and wen to far
You will need to wait becouse it takes time to draw them.
If you have some questions then ask.
Here is the code. Just put it on the first frame.
//-----------------------------------------------------------
import flash.display.BitmapData;
var bmp:BitmapData = new BitmapData(Stage.width, Stage.height, true, 0xFF000000);
/*true means that it has alpha.
After that goes fill color of a bitmap. format is 0xAARRGGBB where AA is Alpha RR is red GG green and BB blue.
Color is in hex format. 00=0 10=16 FF=255 0A=10.
so 0xFFFF0000 is red while 0x00FF0000 is transperent. Then 0xFF000000 is black and 0xFFFFFFFF is white.
*/
_root.attachBitmap(bmp, -1);
//Now i imported bmp.
bmpSize = Stage.width*Stage.height; //number of pixels.
colorNumber = 255*255*255;//number of colors
d = colorNumber/bmpSize;// color value per pixe
//i define functions which convert x and y coordiantes to a number which will be used as a color for a pixel
function Sin(x, y) {
return 255*255*Math.sin(y*x*100);
}
function Sin2(x, y) {
return colorNumber*Math.sin(y*x/1000);
}
function sq(x, y) {
return x*y;
}
function sum(x, y) {
return x+y;
}
function rad(x, y) {
dx = Stage.width/2-x;
dy = Stage.height/2-y;
return dx*dx+dy*dy;
}
function mutant(x, y) {
return rad(sq(x, y), sum(x, y));
}
var functions:Array = new Array();//array of functions
index = 0;//current index of the function
var func:Function = Sin;//function which is used o determien coor for a pixel
functions.push(Sin);
functions.push(Sin2);
functions.push(sum);
functions.push(sq);
functions.push(rad);
functions.push(mutant);
function reDraw() {//function which is used to draw
for (x=0; x<Stage.width; x++) {//for each x
for (y=0; y<Stage.height; y++) {//for each y
f = 0xFF000000+func(x, y);//determien a color
bmp.setPixel32(x, y, f);//draw a pixel
}
}
}
reDraw();
onMouseDown = function () {//on mouse click change function
index++;
func = functions[index%functions.length];
reDraw();
};
//-----------------------------------------------------------
You will need to wait becouse it takes time to draw them.
If you have some questions then ask.
Here is the code. Just put it on the first frame.
//-----------------------------------------------------------
import flash.display.BitmapData;
var bmp:BitmapData = new BitmapData(Stage.width, Stage.height, true, 0xFF000000);
/*true means that it has alpha.
After that goes fill color of a bitmap. format is 0xAARRGGBB where AA is Alpha RR is red GG green and BB blue.
Color is in hex format. 00=0 10=16 FF=255 0A=10.
so 0xFFFF0000 is red while 0x00FF0000 is transperent. Then 0xFF000000 is black and 0xFFFFFFFF is white.
*/
_root.attachBitmap(bmp, -1);
//Now i imported bmp.
bmpSize = Stage.width*Stage.height; //number of pixels.
colorNumber = 255*255*255;//number of colors
d = colorNumber/bmpSize;// color value per pixe
//i define functions which convert x and y coordiantes to a number which will be used as a color for a pixel
function Sin(x, y) {
return 255*255*Math.sin(y*x*100);
}
function Sin2(x, y) {
return colorNumber*Math.sin(y*x/1000);
}
function sq(x, y) {
return x*y;
}
function sum(x, y) {
return x+y;
}
function rad(x, y) {
dx = Stage.width/2-x;
dy = Stage.height/2-y;
return dx*dx+dy*dy;
}
function mutant(x, y) {
return rad(sq(x, y), sum(x, y));
}
var functions:Array = new Array();//array of functions
index = 0;//current index of the function
var func:Function = Sin;//function which is used o determien coor for a pixel
functions.push(Sin);
functions.push(Sin2);
functions.push(sum);
functions.push(sq);
functions.push(rad);
functions.push(mutant);
function reDraw() {//function which is used to draw
for (x=0; x<Stage.width; x++) {//for each x
for (y=0; y<Stage.height; y++) {//for each y
f = 0xFF000000+func(x, y);//determien a color
bmp.setPixel32(x, y, f);//draw a pixel
}
}
}
reDraw();
onMouseDown = function () {//on mouse click change function
index++;
func = functions[index%functions.length];
reDraw();
};
//-----------------------------------------------------------
Image size
550x400px 26.89 KB
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Comments9
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Thank-you so much for sharing this. I'm relatively new to Flash & I get kinda' muddled by the 'jargon'; you know- the .abc makes the flibberjibbitt cogitate when connected to a blitblob = it makes the email work.
So when you give me a term I can look up & examples like you have, I'm impressed. Thanks for continuing the total philosophy of "Community".
So when you give me a term I can look up & examples like you have, I'm impressed. Thanks for continuing the total philosophy of "Community".