AVS/Express FAQ

Miscellaneous

1. What are the supported platforms for AVS/Express?
2. Does AVS/Express support Stereo viewing?
3. I am receiving errors when compiling AVS/Express 5.0 with the Sun C++ 5.0 compiler.
4. How do I see what command line options AVS/Express accepts?
5. Why is the Save Compiled Project menu option always grayed out?
6. Can I specify that AVS/Express not take all the colors in the colormap when it starts up?
7. How do I generate C++ classes for my AVS/Express objects?
8. Where can I find an example that uses AVS/Express to generate C++ components and incorporate them into a traditional Motif application?
9. What happens when I bring AVS/Express up with a V filename as an argument, for example express MyApp.v?
10. How do I get subscripts, superscripts, foreign characters, and so on in my strings in AVS/Express?
11. I want to read a series of files named 'filexxx.dat' where xxx vary from 000 to 015. How do I do that in AVS/Express?
12. What is in inst.v and when and why is it generated?
13. How do I specify a Field or a user defined data type as a subobject of a module I create using the Add Module tool?
14. How can I access data supplied by a real-time data server in an AVS/Express module and how do I use that data in AVS/Express?
15. Are there any modules in AVS/Express that do statistical analysis, for example means?
16. How can AVS/Express users who are creating runtimes implement online help in their applications?
17. Does the Image Processing kit in AVS/Express work on vector data?
18. If using AVS/Express in client-server mode, can multiple clients communicate to the same server process?
19. How do I exit from full screen stereo mode?
20. When I animate a scene I receive a vbv overflow error.

PC Specific

1. Which PC graphics card do you recommend?
2. How do I debug a module in the user process on the PC?
3. Why do the dimensions of the picture I see on the screen differ from what is printed when printing on the PC with true scale enabled?
4. Under Windows '95 and '98, why are printouts from my color printer sometimes in black and white?
5. How do I resolve an 'out of environment space' error when trying to relink AVS/Express under Windows '95 and '98?

Visualization

1. When I specify the coordinates of the nodes in my Field, do I need to specify the coordinates in x first, then y, then z?
2. Why are multiple objects in a view transformed, when I select and transform just a single object?
3. Why does my 2D slice seem to move in the viewer as I change the slice plane?
4. Is there a module to convert float data values to byte so that I can volume render my float data?
5. When specifying a cell set, which cell set values do I need to set?
6. What is the difference between Read_Geom and Read_Geoms?
7. Is there a module that takes unstructured data, and outputs structured data?
8. Are uniform Fields less compute intensive than unstructured Fields?
9. How can I modify the aspects of my 3D view (slice, for example) ?

Graphics Display

1. How can I make an object not transformable in the viewer?
2. Can AVS/Express produce transparent polylines?
3. What happens if I set rendering properties - such as object color or highlights - on an image?
4. Is there any way to save the the polytri strips created by the renderer?
5. Why don't I see anything happen in the viewer when I z-translate an object?
6. Why did my object disappear when I toggled on perspective viewing projection?
7. Does depth cueing apply to lines or objects?
8. Why do I lose the shading on my object when I texture map it using the texture_mesh module?
9. Does AVS/Express support higher order elements in Express?
10. Does AVS/Express support 3D picking (x, y, and z returned)?

Network Editor

1. How can I see the full name of the module in a library when the name exceeds the width of the library column?
2. How are multi-dimensional arrays of groups supposed to be displayed in the Network Editor?
3. Can I add to and change the Info pop-up menu?
4. When can I have more than one object connected to another?
5. What do the interrupt and disable buttons on the DataViewer do?
6. What is the little square tab on the output end of some objects?
7. If I accidentally close my SingleWindowApp object (Data Viewer window), how can I make it visible again?
8. How is the port order in a macro determined?

Object Manager/V

1. Is the decimal object a long?
2. How do I remove a property, such as a user defined property, which cannot be accessed through the Propeties Editor?
3. Can I implement a remote module that runs on a machine that is a different architecture than the one I'm running AVS/Express on?
4. When do values of references get computed?
5. When groups are merged, are properties on objects merged too?
6. Can I add to an array in the V?
7. Does the Object Manager do any write locks on objects, such as arrays?
8. Are object names case-sensitive?
9. When do I use an mlink vs. link?
10. Can I specify that an object inherit from a primitive like int?
11. What is the difference between the combine_array and concat_array V functions?

Templates

1. Why are some template libraries empty?
2. Why do some of the AVS/Express's library objects have parentheses around their names?
3. If I change a template object, is that change propogated to all subclasses and instances?

File Import Tool

1. What does the cache toggle in the File Import Tool do?
2. When a file is opened using a File object (File Import module), when does it get closed?
3. What if the amount of data I specify to read using the File Import Tool is greater than the amount of data stored in the file?

User Interface

1. When I set a font in a UIshell, is this font 'inherited' by all of the UIshell's child objects?
2. Can I limit the size of a UItext typein?
3. How can I get an hourglass cursor to display when my module fires?
4. How would I capture all x,y values from UItwoPoint so that I could use x,y results to, say, draw (ROI) lines?
5. Can I make multi-line text fields smaller?
6. Is the NT version of the UI Kit based on the MFC (MicroSoft Foundation Class) library?
7. Is there any built-in function to return the size of a string?

Modules

1. Does our C++ interface support overload operators?
2. What are methods (as compared to omethods or cmethods)?

Printing

1. Does the Print Editor do a straight dump or does it reinterpret the polygons?
2. Does the PrintViewer scale pictures?

GIS kit

1. What equations are used for the mapping projections supported by the GIS?

Annotation and Graphing

1. What do limitsX, limitsY in the AG Viewport object do?
2. How are the number and position of labels computed by the axes objects?
3. How can I create graphs of discontinuous data?

Database Kit

1. What happens if I try to fetch table data that include a data type which is not supported in AVS/Express?

Licensing

1. How many and what kind of licenses do I need when running AVS/Express in client-server mode?

AVS5 Compatibility

1. Are AVS5 animation capabilities available in AVS/Express?