| T O P I C R E V I E W |
| BionicWave |
Posted - Aug 24 2011 : 13:38:10
I would like to create a layer on top of a background-image that has shows a grid with the width of the original pixelsize.
So when i zoom into the background-image, the gridwidth grows, as the pixelwidth of the background-image does.
Its the effect you can see in photoshop when zooming deep into an image. If you reach a certain zoomlevel, the grid shows up, so you can easily distinguish all the single pixels.
Is that possible?
Is there an easy example of how to do that?
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| 4 L A T E S T R E P L I E S (Newest First) |
| BionicWave |
Posted - Aug 25 2011 : 00:54:00
Many thanks to you, guys.
This is exactly what i was looking for.
@fabrizio:
thanks for the info on where to find the fields for the grid.
I will take a look inside the imageenview unit for other options. |
| fab |
Posted - Aug 24 2011 : 23:46:22
Yes, it is possible to set the pen for the grid using iegGRIDPEN public field (it is a TPen object), for example:
iegGRIDPEN.Color:=clRed;
iegGRIDPEN.Mode:=pmCopy;
ImageEnView1.Update();
iegGRIDPEN is defined in "imageenview" unit. |
| BionicWave |
Posted - Aug 24 2011 : 14:31:18
Wow, thats nice.
Is it possible to set a different color for the grid? |
| w2m |
Posted - Aug 24 2011 : 14:20:50
property DisplayGrid:boolean;
Description
When DisplayGrid is True and the Zoom is equal to or greater than 400, a grid is drawn. Each grid box is equivalent to a bitmap pixel.
Look also iegMINZOOMDISPLAYGRID.
This does exactly what you are looking for except it is not a layer. If DisplayGrid = True with the default iegMINZOOMDISPLAYGRID = 400 then the grid appears when the image is zoomed to 400%.
William Miller |
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