Dart SVG Matrix Transformation - svg

I am trying to create a class (in Dart) that makes a SVG group transformable through a matrix. I've tried to use the 'setAttribute' route, and it works for a single SvgElement:
Transform Class:
String _x;
Element _transformElement;
void setX(int value)
{
_x = value.toString();
_transformElement.setAttribute('x', _x);
}
Dart file:
Transform test = new Transform('testObject');
void main()
{
test.setX(25);
}
However, I would like to be able to make all of the setters run through a single matrix. Here is my code:
Transform Class:
Matrix _matrix;
void setX(int value) => setTransform(x: value);
void setTransform({int scaleX: null, int skewX: null, int skewY: null, int scaleY: null, int x: null, int y: null})
{
_matrix.a = scaleX;
_matrix.b = skewX;
_matrix.c = skewY;
_matrix.d = scaleY;
_matrix.e = x;
_matrix.f = y;
_transformElement.setAttribute('width', _matrix.a.toString());
_transformElement.setAttribute('height', _matrix.d.toString());
_transformElement.setAttribute('x', _matrix.e.toString());
_transformElement.setAttribute('y', _matrix.f.toString());
}
My error is that the _matrix is null. Also, I would like this to work for a group of SVG objects and not just one SVGElement

You can call createSVGMatrix to get a matrix that you can manipulate
If you're working in an SVG document then you could call it this way.
var matrix = document.documentElement.createSVGMatrix();
If you have a html document with inline SVG in it then you'll need to get the root SVG element and call createMatrix() on that.

Related

Calling a String in Processing

I'm new to processing/java/code but was hoping for some help with my sketch.
I am trying to create an ink-looking sketch, with letters/characters displayed, then faded out instead of particles themselves. Inspired by https://openprocessing.org/sketch/1576908 I've run into errors with the entire particle constructor with an error on the line void update(p):
//update the velocity and location of particle
void update(p){
this.acceleration.add(createVector((noise(this.location.x)*2-1), (noise(this.location.y)*2-1)));
this.velocity.add(this.acceleration);
this.acceleration.set(0,0);
this.location.add(this.velocity);
this.alpha -= this.rate ;
// here is the recursion condition
if(this.alpha<=this.palpha*0.25 && this.palpha>10) {
p.push(new particle(this.location.x, this.location.y, this.rate*0.25, this.palpha*0.5));
}
}
Here is my full code
Thank you!
String[] particles = {"a", "b", "c", "d"} ; //string of particles
int velocity;
int acceleration;
int location;
int alpha;
int p;
void setup() {
size(600, 600);
background(255);
}
void draw() {
if(mousePressed) {
// spawn a new particle and add it to the array
particles.push(text(particles, mouseX, mouseY, 75));
textSize(random(20, 40));
}
// update and show the particles
for(int i=particles.length-2; i>=0; i--) {
particles[i].update(particles);
particles[i].show();
if(particles[i].alpha<=2) particles.splice(i, 5); // remove the dead particle
}
}
//particle class
class particle{
//constructor called when creating an instance of this class
// x & y are the location, r is the rate of decay, a is the starting alpha value
particle(float x, float y, float r, float a){
this.location = createVector(x,y) ;
this.velocity = createVector(random(-1,1),random(-1,1));
this.acceleration = createVector();
this.alpha = this.palpha=a ;
this.amp=4; // size of the particle
this.rate = r;
}
//update the velocity and location of particle
void update(p){
this.acceleration.add(createVector((noise(this.location.x)*2-1), (noise(this.location.y)*2-1)));
this.velocity.add(this.acceleration);
this.acceleration.set(0,0);
this.location.add(this.velocity);
this.alpha -= this.rate ;
// here is the recursion condition
if(this.alpha<=this.palpha*0.25 && this.palpha>10) {
p.push(new particle(this.location.x, this.location.y, this.rate*0.25, this.palpha*0.5));
}
}
//show the particles
void show(){
noStroke() ;
fill(0,35,25, this.alpha) ;
ellipse(this.location.x, this.location.y, this.amp);
}
} // end particle class```
You have at least two separate questions here:
how to port the p5.js sketch to Processing ?
how to add text for each particle ?
In the future I recommend breaking the problem down to simpler/shorter problems that can be tackle independently.
How let's look at the syntax errors Processing presents:
1.
particles.push(text(particles, mouseX, mouseY, 75));
errors with
The function "text()" expects parameters like: "text(int, float, float, float)"
The issue here is slightly masked. It looks like instead of calling text(yourTextString, yourTextX, yourTextY); you have different parameters. In reality there are two issues here:
push() is JavaScript Array's function. You need to use an ArrayList and its add() method instead in Processing (Java).
currently the particle class doesn't handle text. You can add a String text property which you can supply with a modified contructor: Particle(float x, float y, float r, float a, String text) (and you'd assign the constructor argument to the instance property (e.g. this.text = textl)
createVector exists in p5.js. In Processing you can switch this to new PVector(). Additionally you need to declare the variables initialised in the constructor as part of the class (e.g. location, velocity, acceleration, alpha, palpha, amp, rate).
ellipse(this.location.x, this.location.y, this.amp); is missing the last argument: ellipse(this.location.x, this.location.y, this.amp, this.amp);
This is a modified version of your code with the above notes applied:
// original sketch by OpenProcessing user Prasad
// https://openprocessing.org/sketch/1576908
String[] particlesText = {"a", "b", "c", "d"} ; //string of text
// array of particles
ArrayList<Particle> particles = new ArrayList<Particle>();
int velocity;
int acceleration;
int location;
int alpha;
int p;
void setup() {
size(600, 600);
background(255);
}
void draw() {
if(mousePressed) {
// spawn a new particle and add it to the array
// use % to loop over text (e.g .a,b,c,d,a...etc)
int textIndex = particles.size() % particlesText.length;
// grab the text from the array
String text = particlesText[textIndex];
// add a new particle providing text as well
particles.add(new Particle((float)mouseX, (float)mouseY,5.0, 75.0, text));
textSize(random(20, 40));
}
// update and show the particles
for(int i=particles.size()-2; i>=0; i--) {
Particle particle = particles.get(i);
particle.update(particles);
particle.show();
if(particle.alpha<=2) particles.remove(i); // remove the dead particle
}
}
//particle class
class Particle{
PVector location;
PVector velocity;
PVector acceleration;
float alpha;
float palpha;
float amp;
float rate;
String text = "";
//constructor called when creating an instance of this class
// x & y are the location, r is the rate of decay, a is the starting alpha value
Particle(float x, float y, float r, float a, String text){
this.location = new PVector(x,y) ;
this.velocity = new PVector(random(-1,1),random(-1,1));
this.acceleration = new PVector();
this.alpha = this.palpha=a ;
this.amp=4; // size of the particle
this.rate = r;
this.text = text;
}
//update the velocity and location of particle
void update(ArrayList<Particle> p){
this.acceleration.add(new PVector((noise(this.location.x)*2-1), (noise(this.location.y)*2-1)));
this.velocity.add(this.acceleration);
this.acceleration.set(0,0);
this.location.add(this.velocity);
this.alpha -= this.rate ;
// here is the recursion condition
if(this.alpha<=this.palpha*0.25 && this.palpha>10) {
p.add(new Particle(this.location.x, this.location.y, this.rate*0.25, this.palpha*0.5, this.text));
}
}
//show the particles
void show(){
noStroke() ;
fill(0,35,25, this.alpha);
//render the ellipse
ellipse(this.location.x, this.location.y, this.amp, this.amp);
// render the text
textSize(this.amp * 6);
text(this.text, this.location.x, this.location.y);
}
} // end particle class
(Note that you can choose not to render the ellipses and you can tweak the text size to something that makes more sense aesthetically. Also, when you're using other people's code, always credit them.)

MQL4 Drawing a Dynamic Rectangle_Label with a Text in It

I am trying to draw a Rectangle Label with a text in it every tick.. I want a text to fit exactly in to a Rectangle_Label.. As a text i am using Label.. But cant get it to work exactly.. It is not correctly situated..
In Fact i would like to create a class that would do it all in one... Just like a rectangle with text in it that would be always having same co ordinance and size etc..
Any help would be greatly appreciated...
bool createRectangleLabel(long chart_ID,string name,string labelName,int shift,double price,string text,double xSize,double ySize,double xOffSet,double yOffSet,double xDistance,double yDistance)
{
if(ObjectCreate(chart_ID,labelName,OBJ_RECTANGLE_LABEL,0,TimeCurrent()-shift,price))
{
Print(xDistance+" "+yDistance);
ObjectSetInteger(chart_ID,labelName,OBJPROP_BGCOLOR,clrBlack);
ObjectSetInteger(chart_ID,labelName,OBJPROP_XDISTANCE,xDistance);
ObjectSetInteger(chart_ID,labelName,OBJPROP_YDISTANCE,yDistance);
ObjectSetInteger(chart_ID,labelName,OBJPROP_YSIZE,ySize);
ObjectSetInteger(chart_ID,labelName,OBJPROP_XSIZE,xSize);
ObjectSetString(chart_ID,labelName,OBJPROP_TEXT,text);
ObjectSetInteger(chart_ID,name,OBJPROP_ANCHOR,ANCHOR_CENTER);
return true;
}
else
{
Print("createRectangleLabel return error code: ",GetLastError());
Print("+--------------------------------------------------------------+");
return false;
}
}
bool createLineText(long chart_ID,string name,string labelName,int shift,double price,string text)
{
int xDistance=0;
int yDistance=0;
int xSize,xOffSet;
int ySize,yOffSet;
bool i=ChartTimePriceToXY(chart_ID,0,TimeCurrent(),price,xDistance,yDistance);
if(ObjectCreate(chart_ID,name,OBJ_LABEL,0,TimeCurrent()-shift,price))
{
ObjectSetInteger(chart_ID,name,OBJPROP_BGCOLOR,clrWhite);
ObjectSetInteger(chart_ID,name,OBJPROP_XDISTANCE,xDistance);
ObjectSetInteger(chart_ID,name,OBJPROP_YDISTANCE,yDistance);
ObjectSetString(chart_ID,name,OBJPROP_TEXT,text);
ObjectSetInteger(chart_ID,name,OBJPROP_ANCHOR,ANCHOR_CENTER);
ObjectSetInteger(chart_ID,name,OBJPROP_COLOR,clrWhite);
ObjectSetInteger(chart_ID,name,OBJPROP_FONTSIZE,10);
xSize = ObjectGet(name,OBJPROP_XSIZE);
ySize = ObjectGet(name,OBJPROP_YSIZE);
xOffSet = ObjectGet(name,OBJPROP_XOFFSET);
yOffSet = ObjectGet(name,OBJPROP_YOFFSET);
TextGetSize(name,xSize,ySize);
createRectangleLabel(chart_ID,name,labelName,shift,price,text,xSize,ySize,xOffSet,yOffSet,xDistance,yDistance);
return true;
}
else
{
Print("createLineText return error code: ",GetLastError());
Print("+--------------------------------------------------------------+");
return false;
}
}
You cannot call ObjectCreate() every tick - it would return an error 4200.
If you check the object exists before creating, that would help. Alternative approach would be to try to create the object and assign it with some necessary properties (e.g., color of the object, anchor etc) in one block, and move it in another.
if(ObjectFind(chart_id,labelName)<0){
if(ObjectCreate(chart_ID,labelName,OBJ_RECTANGLE_LABEL,0,TimeCurrent()-shift,price)){
ObjectSetInteger(chart_ID,labelName,OBJPROP_BGCOLOR,clrBlack);//etc.
}
ObjectSetInteger(chart_ID,labelName,OBJPROP_XDISTANCE,xDistance);
ObjectSetInteger(chart_ID,labelName,OBJPROP_YDISTANCE,yDistance);//if you need to move the object or take other steps each tick, e.g. update text - do it here
}
You're thinking along the right lines when you say that you'd like to create a class. Fortunately for you, the standard library already includes all the classes you need to make chart objects. Documentation
Example Indicator:
#property strict
#property indicator_chart_window
#include <ChartObjects\ChartObjectsTxtControls.mqh>
class MyRectLabel : public CChartObjectRectLabel
{
CChartObjectLabel m_label;
public:
bool Create(long chart, const string name, const int window,
const int X, const int Y, const int sizeX, const int sizeY)
{
if(!CChartObjectRectLabel::Create(chart,name,window,X,Y,sizeX,sizeY))
return false;
return m_label.Create(chart, name + "_", window, X + 8, Y + 12);
}
bool Color(const color clr){
return m_label.Color(clr);
}
bool Description(const string text){
return m_label.Description(text);
}
bool FontSize(const int size){
return m_label.FontSize(size);
}
bool ToolTip(const string text){
return (this.ToolTip(text) && m_label.Tooltip(text));
}
};
//+------------------------------------------------------------------+
MyRectLabel rect_label;
//+------------------------------------------------------------------+
int OnInit()
{
if(!rect_label.Create(0, "rlabel", 0, 5, 25, 100, 50)
|| !rect_label.BackColor(clrWhiteSmoke)
|| !rect_label.Description("LABEL!")
|| !rect_label.Tooltip("I am a rectangle label")
|| !rect_label.Color(clrBlack)
|| !rect_label.FontSize(18)
)
return INIT_FAILED;
return INIT_SUCCEEDED;
}
//+------------------------------------------------------------------+
int start()
{
static double last_price = 0.;
rect_label.Description(DoubleToString(Bid, _Digits));
if(Bid > last_price)
rect_label.Color(clrLimeGreen);
else
rect_label.Color(clrRed);
last_price = Bid;
return 0;
}

How to clip a series by its grid?

I want to create an XYPlot such that the most left point and the most right point of all series, are clipped off.
So, let's say I want to plot the series described by the following arrays
Number[] xs = new Number[]{-1, 50, 101};
Number[] ys = new Number[]{10, 20, 20};
But I want to clip off the first point (-1,10) and the last point (101,20), how could I do it?
I tried to use the methods setDomainBoundaries() and setRangeBoundaries() but the series exceeds it's grid/plot area.
I'd suggest a custom implementation of XYSeries to do this. Here's a example that should basically do what you want:
class MyXYSeries implements XYSeries {
Number[] xs = new Number[]{-1, 50, 101};
Number[] ys = new Number[]{10, 20, 20};
#Override
public int size() {
return xs.length - 1; // clip the trailing point
}
#Override
public Number getX(int index) {
// shift xy vals over one to clip the leading point
return xs[index+1];
}
#Override
public Number getY(int index) {
// shift xy vals over one to clip the leading point
return ys[index+1];
}
#Override
public String getTitle() {
return "your title";
}
}

get layout height and width at run time android

How can I get width and height of a linear layout which is defined in xml as fill_parent both in height and width? I have tried onmeasure method but I dont know why it is not giving exact value. I need these values in an Activity before oncreate method finishes.
Suppose I have to get a LinearLayout width defined in XML. I have to get reference of it by XML. Define LinearLayout l as instance.
l = (LinearLayout)findviewbyid(R.id.l1);
ViewTreeObserver observer = l.getViewTreeObserver();
observer.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
// TODO Auto-generated method stub
init();
l.getViewTreeObserver().removeGlobalOnLayoutListener(
this);
}
});
protected void init() {
int a= l.getHeight();
int b = l.getWidth();
Toast.makeText(getActivity,""+a+" "+b,3000).show();
}
callfragment();
}
The width and height values are set after the layout has been created, when elements have been placed they then get measured. On the first call to onSizeChanged the parms will be 0 so if you use that check for it.
Little more detail here
https://groups.google.com/forum/?fromgroups=#!topic/android-developers/nNEp6xBnPiw
and here http://developer.android.com/reference/android/view/View.html#Layout
Here is how to use onLayout:
#Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int width = someView.getWidth();
int height = someView.getHeight();
}
To get it work, you need to check whether the desired height value is bigger than 0 - and first then remove the onGlobalLayout listener and do whatever you want with the height. The listener calls its method continuously and by the first call it is not guaranteed that the view is measured properly.
final LinearLayout parent = (LinearLayout) findViewById(R.id.parentView);
parent.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int availableHeight = parent.getMeasuredHeight();
if(availableHeight>0) {
parent.getViewTreeObserver().removeGlobalOnLayoutListener(this);
//save height here and do whatever you want with it
}
}
});
You could add on layout change listener to your layout and get the newest height and width or even the one before last change.
Added in API level 11
Add a listener that will be called when the bounds of the view change
due to layout processing.
LinearLayout myLinearLayout = (LinearLayout) findViewById(R.id.my_linear_layout);
myLinearLayout.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
#Override
public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
// Preventing extra work because method will be called many times.
if(height == (bottom - top))
return;
height = (bottom - top);
// do something here...
}
});
A generic approach using Kotlin based on MGDroid's answer for API 16+.
/**
* Align height of a container from wrap-content to actual height at runtime.
* */
private fun <T: ViewGroup> alignContainerHeight(container: T) {
container.viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlobalLayoutListener {
override fun onGlobalLayout() {
// Obtain runtime height
val availableHeight = container.measuredHeight
if (availableHeight > 0) {
container.viewTreeObserver.removeOnGlobalLayoutListener(this)
setContainerHeight(container, availableHeight)
}
}
})
}
/**
* Note: Assumes that the parent is a LinearLayout.
* */
private fun <T : ViewGroup> setContainerHeight(container: T, availableHeight: Int) {
val availableWidth = container.measuredWidth
val params = LinearLayout.LayoutParams(availableWidth, availableHeight)
// Note: getLayoutParams() returns null if no parent exists
if (container.layoutParams != null) {
container.layoutParams = params
}
}

Is there an existing PropertyGrid UITypeEditor for type "ChartColorPalette"?

I'm trying to write a simple property grid to allow the users to modify the colours of a Chart. By default, a Chart has a "Palette" property, which is of the enumeration type "ChartColorPalette". If the object which underlies my property grid also has a "Palette" property of the same type, I get the drop-down list of possible values. What I don't get however, is the little stripey images to the left of the value names.
Now, I can write a UITypeEditor derived class and have the "PaintValue" draw little resource bitmaps which I have culled from the screen using "Paint" or somesuch, but this seems rather tedious.
Does anyone know if there is already a type editor for the "ChartColorPalette" enumeration which I can use to get the little bitmaps ?
as it happens, writing the UITypeEditor is not that tricky, and not that much code either.
Firstly I created a type editor that looked like this:
private class ChartColorPaletteEditor : UITypeEditor
{
public override bool GetPaintValueSupported(ITypeDescriptorContext context)
{
return true;
}
public override void PaintValue(PaintValueEventArgs e)
{
String paletteName = e.Value.ToString();
String baseName = this.GetType().Namespace + ".MyChart";
ResourceManager mgr = new ResourceManager(baseName, this.GetType().Assembly);
Bitmap bmp = mgr.GetObject(paletteName) as Bitmap;
if (bmp != null)
{
e.Graphics.DrawImage(bmp, e.Bounds);
bmp.Dispose();
}
}
}
I attached this to my control property in the usual way:
[DefaultValue(typeof(ChartColorPalette), "BrightPastel")]
[Editor(typeof(ChartColorPaletteEditor), typeof(System.Drawing.Design.UITypeEditor))]
[Category("Appearance")]
[Description("The named palette to use when choosing the colour scheme for the chart series lines.")]
public ChartColorPalette Palette { get; set; }
Then I added a small PNG resource for each of the little palette images. I had a derived control "MyChart" which inherited from "Chart" and I added the images to that as resources (making sure to set the "Persistance" property to "Embedded in .resx" to save having to keep the PNG files about). The names of the PNG files matched the names in the ChartColorPalette enumeration.
The only issue was where to get the little 20 x 14 images from. I originally just culled them using Paint.exe but didn't like that, so I wrote some code to generate them for me. That was fairly simple, once I had found the colour values that are used by the Charting control. One subtlety is that, where there are more than 12 colours in a palette, the little bitmap uses every other colour. That code looked like this:
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Reflection;
using System.Windows.Forms.DataVisualization.Charting;
namespace ConsoleApplication10
{
class Program
{
static void Main(string[] args)
{
Enum.GetValues(typeof(ChartColorPalette)).OfType<ChartColorPalette>().ToList().ForEach(GeneratePNG);
}
static void GeneratePNG(ChartColorPalette palette)
{
if (palette == ChartColorPalette.None) return;
Color[] colours = palette.GetColors();
if (colours.Length >= 12)
{
colours = new Color[] { colours[0], colours[2], colours[4], colours[6], colours[8], colours[10] };
}
else
{
colours = new Color[] { colours[0], colours[1], colours[2], colours[3], colours[4], colours[5] };
}
using (Bitmap bmp = new Bitmap(20, 14))
{
using (Graphics gr = Graphics.FromImage(bmp))
{
using (SolidBrush b1 = new SolidBrush(colours[0]),
b2 = new SolidBrush(colours[1]),
b3 = new SolidBrush(colours[2]),
b4 = new SolidBrush(colours[3]),
b5 = new SolidBrush(colours[4]),
b6 = new SolidBrush(colours[5]))
{
int height = bmp.Height - 2;
gr.DrawRectangle(Pens.Black, 0, 0, bmp.Width - 1, bmp.Height - 1);
gr.FillRectangle(b1, new Rectangle(1, 1, 3, height));
gr.FillRectangle(b2, new Rectangle(4, 1, 3, height));
gr.FillRectangle(b3, new Rectangle(7, 1, 3, height));
gr.FillRectangle(b4, new Rectangle(10, 1, 3, height));
gr.FillRectangle(b5, new Rectangle(13, 1, 3, height));
gr.FillRectangle(b6, new Rectangle(16, 1, 3, height));
}
}
String path = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
path = Path.Combine(path, #"Visual Studio 2010\Projects\DataVisualization.Charting\Palette Bitmaps");
String filename = palette.ToString() + ".png";
bmp.Save(Path.Combine(path, filename), ImageFormat.Png);
}
}
}
public static class Extensions
{
public static Color[] GetColors(this ChartColorPalette value)
{
switch (value)
{
case ChartColorPalette.Berry:
return GetColors(0x8a2be2, 0xba55d3, 0x4169e1, 0xc71585, 0x0000ff, 0x8a2be2, 0xda70d6, 0x7b68ee, 0xc000c0, 0x0000cd, 0x800080);
case ChartColorPalette.Bright:
return GetColors(0x008000, 0x0000ff, 0x800080, 0x00ff00, 0xff00ff, 0x008080, 0xffff00, 0x808080, 0x00ffff, 0x000080, 0x800000, 0xff0000, 0x808000, 0xc0c0c0, 0xff6347, 0xffe4b5);
case ChartColorPalette.BrightPastel:
return GetColors(0x418cf0, 0xfcb441, 0xe0400a, 0x056492, 0xbfbfbf, 0x1a3b69, 0xffe382, 0x129cdd, 0xca6b4b, 0x005cdb, 0xf3d288, 0x506381, 0xf1b9a8, 0xe0830a, 0x7893be);
case ChartColorPalette.Chocolate:
return GetColors(0xa0522d, 0xd2691e, 0x8b0000, 0xcd853f, 0xa52a2a, 0xf4a460, 0x8b4513, 0xc04000, 0xb22222, 0xb65c3a);
case ChartColorPalette.EarthTones:
return GetColors(0xff8000, 0xb8860b, 0xc04000, 0x6b8e23, 0xcd853f, 0xc0c000, 0x228b22, 0xd2691e, 0x808000, 0x20b2aa, 0xf4a460, 0x00c000, 0x8fbc8b, 0xb22222, 0x8b4513, 0xc00000);
case ChartColorPalette.Excel:
return GetColors(0x9999ff, 0x993366, 0xffffcc, 0xccffff, 0x660066, 0xff8080, 0x0066cc, 0xccccff, 0x000080, 0xff00ff, 0xffff00, 0x00ffff, 0x800080, 0x800000, 0x008080, 0x0000ff);
case ChartColorPalette.Fire:
return GetColors(0xffd700, 0xff0000, 0xff1493, 0xdc143c, 0xff8c00, 0xff00ff, 0xffff00, 0xff4500, 0xc71585, 0xdde221);
case ChartColorPalette.Grayscale:
return GetColors(0xc8c8c8, 0xbdbdbd, 0xb2b2b2, 0xa7a7a7, 0x9c9c9c, 0x919191, 0x868686, 0x7b7b7b, 0x707070, 0x656565, 0x5a5a5a, 0x4f4f4f, 0x444444, 0x393939, 0x2e2e2e, 0x232323);
case ChartColorPalette.Light:
return GetColors(0xe6e6fa, 0xfff0f5, 0xffdab9, 0xfffacd, 0xffe4e1, 0xf0fff0, 0xf0f8ff, 0xf5f5f5, 0xfaebd7, 0xe0ffff);
case ChartColorPalette.Pastel:
return GetColors(0x87ceeb, 0x32cd32, 0xba55d3, 0xf08080, 0x4682b4, 0x9acd32, 0x40e0d0, 0xff69b4, 0xf0e68c, 0xd2b48c, 0x8fbc8b, 0x6495ed, 0xdda0dd, 0x5f9ea0, 0xffdab9, 0xffa07a);
case ChartColorPalette.SeaGreen:
return GetColors(0x2e8b57, 0x66cdaa, 0x4682b4, 0x008b8b, 0x5f9ea0, 0x3cb371, 0x48d1cc, 0xb0c4de, 0xffffff, 0x87ceeb);
case ChartColorPalette.SemiTransparent:
return GetColors(0xff6969, 0x69ff69, 0x6969ff, 0xffff69, 0x69ffff, 0xff69ff, 0xcdb075, 0xffafaf, 0xafffaf, 0xafafff, 0xffffaf, 0xafffff, 0xffafff, 0xe4d5b5, 0xa4b086, 0x819ec1);
case ChartColorPalette.None:
default:
return GetColors(0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000);
}
}
private static Color[] GetColors(params Int32[] values)
{
return values.Select(value => Color.FromArgb(255, Color.FromArgb(value))).ToArray(); // alpha channel of 255 for fully opaque
}
}
}
Hope this is useful to someone out there...

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