Xojo Conferences
MBSOct2019CologneDE

Platforms to show: All Mac Windows Linux Cross-Platform

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GMImageMBS.setchromaRedPrimary(x as Double, y as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Chromaticity red primary point
Notes: e.g. x=0.64, y=0.33

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GMImageMBS.setchromaWhitePoint(x as Double, y as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Chromaticity white point
Notes: e.g. x=0.3127, y=0.329

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GMImageMBS.SetEXIFOrientation(orientation as integer) as boolean
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 18.4 Yes Yes Yes Yes No
Function: Sets orientation for EXIF.
Notes:
Changing orientation may need to set orientation via SetOrientation and SetEXIFOrientation. With a JPEG you have orientation both in JPEG header and in EXIF metadata.
Returns true for success and false for failure.

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GMImageMBS.SetPicture(pic as picture, x as Integer, y as Integer)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Copies the picture into the Image at the given position.

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GMImageMBS.SetPictureMask(maskpic as picture, x as Integer, y as Integer)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Copies the picture into the Image's mask at the given position.
Example:
// this converts 32 bit PNG with alpha channel to BMP

dim f as FolderItem = SpecialFolder.Desktop.Child("test.png")
dim p as Picture = Picture.Open(f)

dim g as new GMImageMBS( new GMGeometryMBS(p.Width, p.Height), new GMColorGrayMBS(1.0))

g.type = g.TrueColorMatteType
g.matte = True
g.magick = "BMP"

g.SetPicture(p, 0, 0)
g.SetPictureMask(p.mask.invertMBS, 0, 0)

f = SpecialFolder.Desktop.Child("test.bmp")
g.write(f)

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GMImageMBS.setPixels(x as Integer, y as Integer, columns as Integer, rows as Integer) as Ptr
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Allocates a pixel cache region to store image pixels as defined by the region rectangle.
Example:
dim f as FolderItem = SpecialFolder.Desktop.Child("test.jpg")
dim g as new GMImageMBS(f)

// get pointer to some pixels to write
dim x as ptr = g.setPixels(0, 0, 100, 100)

// draw a red line to the pixel buffer
dim o as Integer
for i as Integer = 0 to 99
o = 100 * i + i
x.UInt32(o * 4) = &hFFFF0000
next

// write back
g.syncPixels

// show
me.Backdrop = g.CopyPicture
Notes: This area is subsequently transferred from the pixel cache to the image via syncPixels.

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GMImageMBS.setStrokeDashArray(values() as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Sets stroke dash pattern.
Notes: Specify the pattern of dashes and gaps used to stroke paths. The strokeDashArray represents a zero-terminated array of numbers that specify the lengths of alternating dashes and gaps in pixels. If an odd number of values is provided, then the list of values is repeated to yield an even number of values. A typical strokeDashArray array might contain the members 5 3 2 0, where the zero value indicates the end of the pattern array.

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GMImageMBS.shade(azimuth as Double=30.0, elevation as Double=30.0, colorShading as boolean=false)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Shade image using distant light source.
Notes: Specify azimuth and elevation as the position of the light source. By default, the shading results as a grayscale image.. Set colorShading to true to shade the red, green, and blue components of the image.

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GMImageMBS.sharpen(radius as Double=0.0, sigma as Double=1.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Sharpen pixels in image.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.sharpen

Backdrop=image.CopyPicture
Notes: The radius parameter specifies the radius of the Gaussian, in pixels, not counting the center pixel. The sigma parameter specifies the standard deviation of the Laplacian, in pixels.

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GMImageMBS.sharpenChannel(channel as Integer, radius as Double=0.0, sigma as Double=1.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Sharpen pixels in image channel.
Notes: The radius parameter specifies the radius of the Gaussian, in pixels, not counting the center pixel. The sigma parameter specifies the standard deviation of the Laplacian, in pixels.

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GMImageMBS.shave(geometry as GMGeometryMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Shave pixels from image edges.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.shave(new GMGeometryMBS(200,200))

Backdrop=image.CopyPicture

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GMImageMBS.shear(xShearAngle as Double, yShearAngle as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Shear image (create parallelogram by sliding image by X or Y axis).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.shear(10,20)

Backdrop=image.CopyPicture
Notes: Shearing slides one edge of an image along the X or Y axis, creating a parallelogram. An X direction shear slides an edge along the X axis, while a Y direction shear slides an edge along the Y axis. The amount of the shear is controlled by a shear angle. For X direction shears, x degrees is measured relative to the Y axis, and similarly, for Y direction shears y degrees is measured relative to the X axis. Empty triangles left over from shearing the image are filled with the color defined as borderColor.

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GMImageMBS.signature(force as boolean=false) as string
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Image textual signature.
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

MsgBox image.signature

Backdrop=image.CopyPicture
Notes: Set force to true in order to re-calculate the signature regardless of whether the image data has been modified.

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GMImageMBS.solarize(factor as Double=50.0)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Solarize image (similar to effect seen when exposing a photographic film to light during the development process)
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.solarize

Backdrop=image.CopyPicture

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GMImageMBS.spread(amount as UInt32=3)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Spread pixels randomly within image by specified ammount
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.spread 5

Backdrop=image.CopyPicture

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GMImageMBS.statistics as GMImageStatisticsMBS
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Obtain image statistics.
Example:
dim f as FolderItem = SpecialFolder.Desktop.Child("test.jpg")
dim g as new GMImageMBS(f)
dim stat as GMImageStatisticsMBS = g.statistics
dim gs as GMImageChannelStatisticsMBS = stat.blue

MsgBox "blue channel: "+str(gs.minimum)+"-"+str(Gs.maximum)+", mean "+str(gs.mean)
Notes: Statistics are normalized to the range of 0.0 to 1.0 and are output to the specified ImageStatistics structure.

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GMImageMBS.stegano(watermark as GMImageMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Add a digital watermark to the image (based on second image).
Example:
dim p as Picture = LogoMBS(500)
dim p1 as Picture = NewPicture(550,500,32)
dim p2 as Picture = NewPicture(550,500,32)

p1.Graphics.DrawPicture p, 0,0
p2.Graphics.DrawPicture p,50,0

dim image1 as new GMImageMBS(p1)
dim image2 as new GMImageMBS(p2)

image2.zoom(new GMGeometryMBS(100,100)) // scale down

// add watermark
image1.stegano(image2)

// now make a threshold so you see the difference
image1.threshold 254

image1.type = image1.TrueColorType
Backdrop=image1.CopyPicture

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GMImageMBS.stereo(rightImage as GMImageMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Create an image which appears in stereo when viewed with red-blue glasses (Red image on left, blue on right)
Example:
dim p as Picture = LogoMBS(500)
dim p1 as Picture = NewPicture(550,500,32)
dim p2 as Picture = NewPicture(550,500,32)

p1.Graphics.DrawPicture p, 0,0
p2.Graphics.DrawPicture p,50,0

dim image1 as new GMImageMBS(p1)
dim image2 as new GMImageMBS(p2)

image1.stereo(IMAGE2)

Backdrop=image1.CopyPicture

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GMImageMBS.strip
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 13.5 Yes Yes Yes Yes No
Function: Remove all profiles and text attributes from the image.

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GMImageMBS.strokeDashArray as Double()
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Queries stroke dash pattern.
Notes: Specify the pattern of dashes and gaps used to stroke paths. The strokeDashArray represents a zero-terminated array of numbers that specify the lengths of alternating dashes and gaps in pixels. If an odd number of values is provided, then the list of values is repeated to yield an even number of values. A typical strokeDashArray array might contain the members 5 3 2 0, where the zero value indicates the end of the pattern array.

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GMImageMBS.swirl(degree as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Swirl image (image pixels are rotated by degrees).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.swirl 200

Backdrop=image.CopyPicture

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GMImageMBS.syncPixels
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Transfers the image cache pixels to the image.

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GMImageMBS.texture(texture as GMImageMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Channel a texture on pixels matching image background color.

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GMImageMBS.threshold(degree as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Threshold image channels (below threshold becomes black, above threshold becomes white).
Example:
dim p as Picture = LogoMBS(500)
dim image as new GMImageMBS(p)

image.threshold 127

// convert to RGB so CopyPicture works
image.type = image.TrueColorType
Backdrop=image.CopyPicture
Notes: The range of the threshold parameter is 0 to MaxRGB.

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GMImageMBS.thumbnail(geometry as GMGeometryMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 16.4 Yes Yes Yes Yes No
Function: Resize image using several algorithms to make smaller images very quickly.
Example:
dim f as FolderItem = SpecialFolder.Desktop.Child("test.jpg")
dim g as new GMImageMBS(f)

// make thumbnail
dim geo as new GMGeometryMBS(100, 100)
g.thumbnail(geo)

// show
me.Backdrop = g.CopyPicture

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GMImageMBS.transform(imageGeometry as GMGeometryMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Transform image based on image and crop geometries.
Notes: Crop geometry is optional.

See also:

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GMImageMBS.transform(imageGeometry as GMGeometryMBS, cropGeometry as GMGeometryMBS)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Transform image based on image and crop geometries.
Notes: Crop geometry is optional.

See also:

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GMImageMBS.transformOrigin(tx as Double, ty as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Origin of coordinate system to use when annotating with text or drawing.

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GMImageMBS.transformReset
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Reset transformation parameters to default.

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GMImageMBS.transformRotation(angle as Double)
Type Topic Plugin Version macOS Windows Linux Console & Web iOS
method GraphicsMagick MBS GraphicsMagick Plugin 9.3 Yes Yes Yes Yes No
Function: Rotation to use when annotating with text or drawing.

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The items on this page are in the following plugins: MBS GraphicsMagick Plugin.




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