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To make it easier to match directions of plot Y values and Gfx Pixel Y
values going the opposite direction, I set the plots to styleOwnScale
with min and max values set to negative values that match the pixel Y
values. That way I can run all the arithmetic the same for both, and
just flip the sign of the plot data before plotting.
BR,
Dennis
On Mar 22, 2009, at 3:20 PM, aajurg wrote:
> Yes it's help me Jorgen !
> (Sorry
> I'm busy these days I respond slowly)
> For me what is strange the pixels are counted from top to bottom .
> Drawiing rectangles that are consistent with values's area is not easy
>
> --- In amibroker@xxxxxxxxxxxxxxx, "jorgen_wallgren"
> <jorgen.wallgren@xxx> wrote:
>>
>> First of all, you can't assign an array as a point for the
>> Rectangle, so
>> try y2 = LastValue(Courbemansfield);
>>
>> Zero is in upper left corner of the screen. When I first started with
>> Gfx programming, I took 30 minutes and played around with
>> GfxSetPixel(
>> x, y, color ), GfxRectangle( x1, y1, x2, y2 ), GfxMoveTo( x, y ) ,
>> GfxLineTo( x, y ) and the different Status pixel info I can get. It
>> helped me to get a hang of what's going on.
>>
>> Then when you plot your Gfx creations, you need to know the height
>> and
>> width each items takes, and compare it to the area you use- so you
>> know
>> when you have to switch to the next line, or the other way around, if
>> you want to have x symbols on one line, what's the max width?
>>
>> For example:
>> x2 = Status("pxchartright");
>> y2 = Status("pxchartbottom");
>> PenColor = colorBlack;
>> TxtColor = colorBlack;
>> Width = x2 / 10;
>> Hight = y2 / 10;
>> StartX = 1;
>> StartY = 1;
>> PointSize = Width/7;
>> Weight = 100;
>> GfxSelectPen(PenColor, 2);
>> GfxSetTextColor(TxtColor);
>> GfxSelectFont("Arial", PointSize, Weight);
>> GfxSetBkMode(1);
>> for( i = 0; i < 10; i++ )
>> {
>> for(e=0; e < 10;e++)
>> {
>> GfxSelectSolidBrush(colorBrightGreen);
>> GfxRoundRect( StartX + (i * Width), StartY + (e * Hight), Width * (i
>> +1),
>> Hight * (e+1), 15, 15 );
>> PlotInformation = "Test " + NumToStr(e, 1.0, 0) + " , " + NumToStr(i,
>> 1.0, 0) ;
>> GfxDrawText(PlotInformation, StartX + (i * Width), 1 + StartY + (e *
>> Hight), Width * (i+1), Hight * (e+1), 1);
>> }
>> }
>>
>> I hope that helps.
>>
>> Jorgen
>>
>
>
>
>
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