Crop Image to Printable Area

[Bath]

How to print a selection defined by a rectangle (DRect) to a full paper size page without adjusting to the printable area but crop (cut out) print margins of the image ?
I copied selected entities inside rectangle to new layout, got pure extents of image, now I want to print this selection using PrintDocument object and draw croped part of image to printable area when PrintPage event raised. Help me, please, to find best way to do it.

[support]

Hello,

Please take a look at the following topic: viewtopic.php?f=15&t=10150.

Mikhail

[Bath]

Hello Mikhail,

Is it necessary to draw to a bitmap first and then draw bitmap using DrawImage?

Inspired by another forum post I copied entities inside rectangle to new layout
and then when PrintPage event raised I draw image :

Code: Select all

cadImg.DrawMode = CADDrawMode.Black
cadImg.Draw(e.Graphics, rectangle)

The contours are sharp and clean, but all lines are very light (pale) and thin.
and sometimes some parts of the text are unexpectedly bold. Look is the same regardless of scale.

What I should check ? How can I improve quality of printed page ?

Best Regards,
Vladimir

[support]

Hello Vladimir,

It is necessary to use a CADImage.SaveToStream method when you need to get a specified area of the CAD image in one of image formats. The Bitmap object is required by a Graphics.DrawImage method.

Could you please post a code which you have used to copy entities onto a new layout?

Mikhail

[Bath]

Code I have used to copy entities onto a new layout :

Code: Select all

        Dim lay As CADLayout = New CADLayout
        With src_img
            .Converter.AddLayout(lay)
            Dim cec As CADEntityCollection = .MultipleSelectExt(src_rect, False, False)
            For Each ett As CADEntity In cec
                lay.AddEntity(ett)
            Next
            .IsWithoutMargins = True
            .BorderType = CADBorderType.None
            .BorderSize = 0.0
            .CurrentLayout = lay
            .RefreshCurrentLayout()
            .GetExtents()
        End With

[Bath]

Hello Mikhail,
I think that styles for text and lines are missing, all entities have color and thickness defined by layer, but layer has set thickness to default therefore everything is very thin and hardly visible.

Is possible create layer editable copy with settings for printing ?
Respective set this copy of layer to current layout.

Can I import layer styles from some external file (like *.ctb) ?

It could be a solution for me
Vladimir

[Bath]

Hi, I read an old post where was mentioned that *.ctb files are not supported.

We have licensed CAD:NET version 10.1 , this version also does not allow this ?
Can be obtained product updates ?

I found CADImage.Converter.Layers collection and set LineWeight to required value by layer name.

It looks nice
Vladimir

[support]

Is possible create layer editable copy with settings for printing ?

To create a copy of CADLayer, you may use the following code:

Code: Select all

public CADLayer CreateLayerCopy(CADImage cadImage, CADLayer srcLayer, string newLayerName)
{
    int count = cadImage.Converter.Layers.Count;
    // Add a new layer with the given name (if it doesn't already exist)
    CADLayer newLayer = cadImage.Converter.LayerByName(newLayerName);
    if (count != cadImage.Converter.Layers.Count)
    {
        newLayer.AssignEntity(srcLayer);
        cadImage.Converter.Loads(newLayer);
    }
    return newLayer;
}

Please note that a CADConverter.LayerByName method includes check for for duplicate layers: checks if a layer with the given name exists, and if so, the method returns a corresponding CADLayer instance, otherwise, it adds a new CADLayer with the given name and returns it. CADEntity.AssignEntity method copies properties of the source layer (srcLayer) to the new one.

Respective set this copy of layer to current layout.

CADLayer should be set for a visual CAD object (entity) through a CADEntity.Layer property, not for CADLayout.

Mikhail

[support]

Hi, I read an old post where was mentioned that *.ctb files are not supported.

We have licensed CAD:NET version 10.1 , this version also does not allow this ?

The latest version (14.1) doesn't support *.ctb files as well.

Mikhail

[Bath]

Hello Mikhail,
thank you for your exhaustive answers to my exhausting questions
Vladimir