Processing Forum

trying to run msa fluid library

[0 Replies]
- 25-Feb-2013 06:47 PM
- Forum: Contributed Library Questions
this is a noob question but i am having trouble running the msa fluid library

http://www.memo.tv/msafluid/

after extracting the zip file, i placed the msafluid_for_processing folder in documents/processing/libraries

When I open the MSAfluid demo, I open up the related sketches particle, particle system, and tuiohandler

i tried opening some of the example pdes with both 1.5 and 2.0 but I keep getting this error message

"The package msafluid does not exist. You might be missing a library

No library found for msafluid

As of release 1.0, libraries must be installed in a folder named 'libraries' inside the 'sketchbook' folder."

changing just saturation while leaving hue and brightness constant

[1 Reply]
- 11-Feb-2013 10:07 PM
- Forum: Programming Questions
so I have set up a predefined list of colors in an array and I have almost got it working the way I like. Input ranges from 0 to 1. If input = .2 then the array of colors only has for example's sake 5 elements. If input =.9, then the array of colors gets bigger.

I don't want to do random generation of colors. I want to work with a predefined array.

My question is, how can I modify this code so that when input gets close to 1, saturation of the colors will reach the max value and when input is closer to 0 the saturation will get closer to its min value? And keep hue and brightness constant.

color[] colorarray=new color[22];

color[] myColors= new color[22];

int colorlookup;

void setupColors()

{

float input = random(0,1);

// if input = .2, the array only

colorMode(HSB, 360, 100, 100);



//HSV values

colorarray[0]= color(0,0,0);

colorarray[1]= color(200,1,83);

//brownberry

colorarray[2] = color(233, 40, 32);

colorarray[3] = color(236, 59, 26);

colorarray[4] = color(47, 5, 53);

colorarray[5] = color(54, 18, 100); //white

colorarray[6] = color(32, 52, 32); //gray

//northern lights by aguanno

colorarray[7] = color(247, 55, 25);

colorarray[8] = color(248, 22, 95);

colorarray[9] = color(225, 48, 65);

colorarray[10] = color(163, 29, 95);

colorarray[11] = color(141, 44, 65);

//aurora6

colorarray[12] = color(195, 61, 56);

colorarray[13] = color(54, 38, 98);

colorarray[14] = color(19, 62, 98);

colorarray[15] = color(4, 75, 89);

colorarray[16] = color(209, 100, 20);

//psychedelic by nobu

colorarray[17] = color(354, 100, 100);

colorarray[18] = color(54, 100, 100);

colorarray[19] = color(79, 93, 85);

colorarray[20] = color(204, 100, 100);

colorarray[21] = color(341, 89, 97);



colorlookup= int(input*colorarray.length) -1;

//if using arraylist use colorarray.size



}

color getColor(float directness)//arg

{

//remakeColors(directness);

//remakeColors(directness);





return colorarray[(int) random(0, colorlookup)];



//return colorarray[(int)(10.0*random(0,1))];

}

void remakeColors( float input )

{

myColors = new color[ int( map( input, 0, 1, 2, 500 ) ) ];

for ( int i=0; i<colorarray.length; i++)

{

myColors[i] = colorarray[((int) random(0, colorlookup))];

}

}

dynamic color array

[2 Replies]
- 10-Feb-2013 02:43 PM
- Forum: Programming Questions
hi there,
im new to processing and im trying to create a dynamic array of colors

basically, as float indirectness varies from 0 to 1, I want the array to change size. So if indirectness=

0, then I want the colorarray to only have 2 colors but if indirectness gets closer to 1 then I want colorarray to grow in size

for right now I am using a predefined list of colors but I may eventually want to use ArrayList() or vector()

Is there a better way to do this?

color[] colorarray=new color[12];

float indirectness = random(0,1);

int colorlookup;

void setup()

{

size(640, 480);

// for now just using a standard array

//just using random colors for now

colorarray[0]=color(255, 100, 100);

colorarray[1]=color(235, 100, 100);

colorarray[2]=color(215, 100, 100);

colorarray[3] = color(195, 100, 100);

colorarray[4] = color(175, 100, 100);

colorarray[5] = color(155, 100, 100);

colorarray[6] = color(135, 100, 100);

colorarray[7] = color(115, 100, 100);

colorarray[8] = color(95, 100, 100);

colorarray[9] = color(75, 100, 100);

colorarray[10] = color(55, 100, 100);

colorarray[11] = color(35, 100, 100);

colorlookup= int(indirectness*colorarray.length);

//colorlookup = indirect*colorarray.size, if we use arraylist()

}

void draw()

{

for(int i=0; i < colorlookup; i++)

{

color currentcolor = colorarray[(int) random(0, colorlookup)];

fill(currentcolor);

rect(0, 0, 50, 50);

//

fill(colorarray[3]);

rect (width/8, height/8, 50, 50);

fill(colorarray[5]);

rect (width/4, height/4, 50, 50);

fill(colorarray[11]);

rect (width/2, height/2, 50, 50);

}

}

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