Growth of memory for 2D image control

Good then the 2D image data type is really a string.  It is a series of operations to draw a background image.  So, it of like putting a picture on top of the image that you attract new things, and so the memory increases because all previous layers is no longer able to see, are still in memory.

A small example of this is attached.  Run the VI then first to move back.  Note that the length of string continues to grow even though some parts of the image are covered to the top.

My question is this.  What is the best way to solve this problem?  I have a case where I have an already drawn image and that is fine, but I want to update a part of it (as this VI).  But if I do it again and again the memory grows forever.

I could redraw the entire image each time but I want it to be fast and I'm not sure what will be my photo, I just update a subset of the image based on the pixel location.

I could also convert it to a pixmap and back that seems to work, but is that the right way to do it?  Thank you.

Okay, so a change in the idea. Each section gives an overview of all his stuff. These subdrawings change when change the values that define them. Then combine them together all subdrawings at the last moment before the display.

Mike...

Tags: NI Software

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    When you say that the pop-up menu, I guess you want to tell the menu that is displayed if you right-click on the control.

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    Thanks for letting us know about this behavior.  I'm sorry for any inconveniencce this bug you has done.

  • How can I programmatically draw new circles on an image control

    Hi, I'm fairly new LV and programming in general. I'm creating a program to get better. In this program, I have balls bouncing around on an image control. I use a table to keep track of the ball position (x, y) and the other to follow their speed. I want that whenever a ball reaches the border of the image, it splits into 2 balls. My problem is that I can't find a way to programmatically add these new balls for each draw circle screw must be serialy connected and then drawn on the image. What Miss me?

    You need to iterate over your table of bullets.  This means that the use of automatic indexation.  Now, you have no reason of wire with a value of N in the loop For.  And wiring of this value to the array Index function gives you invalid data it's either nothing, or the ball even if it exists in the table.

    I cleaned up a few other things in your code.

    1 cancel the function.  No need to multiply by-1.

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    I'm having a problem with the control of 3D image not showing my entire 3D model.

    At first, I thought it was 'FOG', but when I put the SceneObject Fog.Function to 'No. Fog' he has no effect.

    I tried several settings, but I can't seem to find anything that affects what I'm looking for.

    I included some photos to show what it is I'm looking for.

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    It seems to be your plan of demarcation.

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    EDIT: Found, is as follows:

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    I have an app where I would like the user to be able to interact with objects in a 2D image control with the mouse.  To do this, I need to translate between the screen coordinates, which are transmitted with the events of mouse and in the control of 2D image.

    The problem that I am running is that I can't find a way to determine the screen coordinates of the top left corner of the drawing/client of the 2D image control area.  I tried to use the 'Position' of the image control property, but this results in a mismatch because of the difference between the upper-left corner of the image control (including the label, etc.) and the upper left corner of the drawing area.  See attached VI.

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    Mark Moss

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  • How could I possibly remove the default image in the image control?

    I use the image control and a bit of code to create a zoom on a picture effect. Everything works fine however I get a picture of labview when the Vi is loaded for the first time. I'm trying to get a blank area instead cause it looks like not really tidy!

    I have attached a picture and my code.

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    The image is configured to be the default value of "Photo". In other words: you must get rid of the default value. You can do this either by:

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    Norbert

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