new_measurelines

The new_measurelines function is a non-class version of the CMeasureLines:new method which creates and returns a new CMeasureLines object. You must create the object before using any class methods or properties.

Syntax

C = new_measurelines()

Creates a default CMeasureLines object with properties initialized to default values.

C = new_measurelines( Params )

Creates a CMeasureLines object with default properties updated to values in the LineParams Table, Params.

C = new_measurelines( CMeasureLines_old )

This is a copy constructor. It creates a new CMeasureLines object initialized to the members of theCMeasureLines_old argument.

Example

The following script creates a new CMeasureLines object, attaches an image window and an image, then draws an angle on the image after moving adjusting the passed coordinates to the nearby centroid position.

L = new_measurelines()	-- create a new CMeasureLines

Params =	-- LineParams properties to change
{
bSetColor = true,
sColor = "0,255,0",
bSetLineThk = true,
nLineThk = 1.5,
bSetCentroid = true,
bCentroid = true,
}
L:SetParams(Params)

V = attachlist_imageview()	-- connect to an image window
Assert( V, "No image window")	-- exit if no image window
-- grab an image from the window, V
--DO NOT declare I as "local" inside the block
if V:Count() > 1 then
I = CImage:AttachFromList( V )	-- pick the image from the CImageView V
Assert( I, "No Images available")	-- exit if no image
else
I = V:GetImage()	-- pick the only image in the window
end
x1 = 300; y1 = 205	-- coordinates of point 1
x2 = 100; y2 = 530	-- coordinates of point 2
bSuccess = L:Add(I, x1, y1, x2, y2)	-- Add the line and draw it on the image

Syntax

Example

Related Topics