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supersk
99 Posts |
 Posted - May 21 2017 : 22:41:41
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I used RulerBox Demo to show ruler on the top of image, I know the real width of image is 320mm, but the ruler show 165, how can I change it? |
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xequte
38615 Posts |
Posted - May 23 2017 : 22:55:21
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Hi
Under the units menu, did you try changing to millimeters?
Also, please do not use the RulerBox demo if you want to add rulers to a TImageEnView. Please see:
Demos\Other\ImageEnViewRulers\ImageEnViewRulers.dpr
This uses the new Ruler properties of TImageEnView.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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supersk
99 Posts |
Posted - May 24 2017 : 20:57:11
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Hi Nigel
before displaying ruler, I used the following code to measure distance, ALL is OK:
fHPixProportion = fRealWidth / ImgDataWidth;
ImageEnVect1->SetScaleFromPixels(1, fHPixProportion);
ImageEnVect1->MouseInteractVt = TIEMouseInteractVt() <<miPutRuler;
but when I show ruler using the next code, the measure result is error, Why?
ImageEnVect1->ShowRulers = TRulerDirs() << rdHorizontal << rdVertical;
ImageEnVect1->RulerParams->Units = ieruMillimeters;
const double InchToMM = 25.46;/*Right*/ //25.39999918;Error! ?
double ImgSizeInch = fRealWidth/InchToMM;
fHPixProportion = fRealWidth / ImgDataWidth;
ImageEnVect1->IO->Params->DpiX = ImgDataWidth/ImgSizeInch;
ImageEnVect1->IO->Params->DpiY = ImgDataWidth/ImgSizeInch;
ImageEnVect1->SetScaleFromPixels(1, fHPixProportion);
ImageEnVect1->MouseInteractVt = TIEMouseInteractVt() <<miPutRuler;
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supersk
99 Posts |
Posted - Jun 01 2017 : 22:21:55
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| Change DipX#65292;why the SetScaleFromPixels(1, fHPixProportion) also change#65311; |
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xequte
38615 Posts |
Posted - Jun 02 2017 : 17:18:48
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Hi
Are you able to create a very small demo that illustrates the issue and email it to me?
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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How to change to ruler display
