CMeasureLines:Add

The Add method adds a line marker to the image and reports measurements of its length and angle from the positive x-axis. The Line Measurement toolbar is opened if not already open. See the toolbar description in the Mira User's Guide.

Syntax

bSuccess = CMeasureLines:Add( Image_obj, x1, y1, x2, y2 )

where Image_obj is a CImage object.

x1 and y1 are the coordinates of the first point.

x2 and y2 are the coordinates of the second point.

On success, bSuccess is returned as true.

Example

Suppose a CImage object I exists. The following script creates a new CMeasureLines object and measures its length and angle. The passed coordinates for both ends of the line are updated to the local centroid positions by setting properties in the LineParams table.

L = new_measurelines()	-- create a new CMeasureLines object

Params =	-- LineParams properties to change
{
bSetColor = true,
sColor = "0,255,0",
bSetLineThk = true,
nLineThk = 1.5,
bSetCentroid = true,	-- centroid the first point
bCentroid = true,	-- centroid the first point
bSetCentroidEndpt = true,	-- centroid the second point
bCentroidEndpt = true,	-- centroid the second point
}
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
if V:Count() > 1 then
I = CImage:AttachFromList( V )	-- pick the image from 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	-- initial coordinates of first point
x2 = 100; y2 = 530	-- initial coordinates of second point
bSuccess = L:Add( I, x1, y1, x2, y2 )	-- Add the measurement to the image

Syntax

Example

Related Topics