DynaPDF Manual - Page 467

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Function Reference

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The coordinate origin that is passed to RotateCoords() is measured in

top down coordinates in this example. However, after the function was

called bottom-up coordinates are active. Because the calculated end

point is measured in bottom-up coordinates too we can directly use the

coordinates to place some text behind the previous string. This works

of course only if the rotated coordinate system is still active.

*/

pdfSaveGraphicState(PDF);

pdfRotateCoords(PDF, 30.0, 150.0, 350.0);

// Note that buttom-up coordinates are now active

pdfWriteFTextEx(PDF, 50, 50.0, 200.0, -1.0, taLeft, "Some rotated text "

"that ends on an unknown position...");

pdfSetFillColor(PDF, PDF_RED);

pdfWriteText(PDF,

pdfGetLastTextPosX(PDF),

pdfGetLastTextPosY(PDF),

"We are behind the last text line");

pdfRestoreGraphicState(PDF);

pdfEndPage(PDF);

Example 3 (WriteAngleText()):

pdfSetPageCoords(PDF, pcTopDown);

double fontSize = 20.0;

pdfAppend(PDF);

pdfSetFont(PDF, "Times", fsItalic, 20.0, true, cp1252);

/*

WriteAngleText() calculates the absolute end point measured in bottom-

up coordinates. Note that the font origin is taken into account. As

long as no further coordinate transformations are applied the

coordinates are directly usable with exception that we must transform

the y-coordinate to top down coordinates in this example.

*/

pdfWriteAngleText(PDF, "Some text...,", 10.0, 150.0, 150.0, 0.0, 0.0);

pdfSetFillColor(PDF, PDF_RED);

// The font size must be subtracted from the y-coordinate coordinate because we are working with top

// down coordinates here.

pdfWriteText(PDF,

pdfGetLastTextPosX(PDF),

pdfGetPageHeight(PDF) - pdfGetLastTextPosY(PDF) - fontSize,

"We are behind the last text line");

pdfEndPage(PDF);

GetLastTextPosXAbs, GetLastTextPosYAbs

Syntax:

Syntax:

double pdfGetLastTextPosXAbs,

double pdfGetLastTextPosYAbs(

const PPDF* IPDF) // Instance pointer

These functions return the absolute end position of the last drawn text after applying coordinate

transformations, if any. The relative end point before applying coordinate transformations is

returned by GetLastTextPosX() / GetLastTextPosY().

Previous topic: GetLastTextPosX, GetLastTextPosY

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