User:Tohline/vtk/Examples/LegacyCornellRectGrid - Revision history

Tohline: /* Example Input Files & VisTrails Pipelines */ Point to Cornell tutorial session

2014-04-20T20:21:05Z

Example Input Files & VisTrails Pipelines: Point to Cornell tutorial session

← Older revision		Revision as of 20:21, 20 April 2014
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	{{LSU_HBook_header}}		{{LSU_HBook_header}}

	This is an example input data file based on a structured-grid illustration that I found on a Cornell University website. The file illustrates VTK's ''Simple Legacy Format'' and the RECTILINEAR_GRID dataset format. Because this example uses 47 x 33 x 11 = 17,061 grid points, we provide a pointer to the website where the input file can be accessed, instead of displaying the entire data file here.		This is an example input data file based on a structured-grid illustration that I found on a Cornell University website. ([http://www.cac.cornell.edu/Ranger/VisIt/prerequisites.aspx As referenced at a related URL], this appears to be a data set that was used at Cornell's Center for Advanced Computing as part of a tutorial session that illustrated how VTK library routines could be used on the high-performance-computers named ''Ranger'' and ''Stampede'' located at TACC, the Texas Advanced Computing Center.) The file illustrates VTK's ''Simple Legacy Format'' and the RECTILINEAR_GRID dataset format. Because this example uses 47 x 33 x 11 = 17,061 grid points, we provide a pointer to the website where the input file can be accessed, instead of displaying the entire data file here.

	To aid in implementation, we present an image of the ~~Cornell~~ configuration and a screen shot of the VisTrails pipeline that was used to generate the image. The data file assigns a scalar value plus a vector velocity to each grid POINT, but it assigns no information to the corresponding grid CELLS.		To aid in implementation, we present an image of the rendered configuration and a screen shot of the VisTrails pipeline that was used to generate the image. The data file assigns a scalar value plus a vector velocity to each grid POINT, but it assigns no information to the corresponding grid CELLS.

	==Legacy (RectilinearGrid) Example from Cornell==		==Legacy (RectilinearGrid) Example from Cornell==

Tohline: /* Example Input Files & VisTrails Pipelines */ Reword introductory paragraph

2014-04-20T20:07:07Z

Example Input Files & VisTrails Pipelines: Reword introductory paragraph

← Older revision		Revision as of 20:07, 20 April 2014
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	{{LSU_HBook_header}}		{{LSU_HBook_header}}

	This is an example input data file ~~that has been developed~~ based on ~~the~~ structured-~~points~~ illustration that I found ~~in a tutorial powerpoint presentation posted (circa 2010) [http://www.bu.edu/tech/files/2010/10/VTK-Fall-2010.ppt by Robert Putnam~~ on a ~~Boston~~ University website~~]; see especially slides 22-25~~. The file illustrates VTK's ''Simple Legacy Format'' and the ~~STRUCTURED_POINTS~~ dataset format. To aid in implementation, we present the ~~full ascii dataset, two resulting rendered images,~~ and a screen shot of the VisTrails pipeline that was used to generate the image. ~~Note that the image captioned "Point Data" was generated~~, ~~by default, while~~ the image captioned "Cell Data" was generated after activating the ''SetScalarModeToUseCellData'' method within the '''vtkDataSetMapper''' module. A list of other example input data files [[User:Tohline/vtk/SimpleCubeTutorial#Other_Example_Input_Files_and_VisTrails_Pipelines\|is provided near the end of our accompanying ''Simple Cube Tutorial'']].		This is an example input data file based on a structured-grid illustration that I found on a Cornell University website. The file illustrates VTK's ''Simple Legacy Format'' and the RECTILINEAR_GRID dataset format. Because this example uses 47 x 33 x 11 = 17,061 grid points, we provide a pointer to the website where the input file can be accessed, instead of displaying the entire data file here.

			To aid in implementation, we present an image of the Cornell configuration and a screen shot of the VisTrails pipeline that was used to generate the image. The data file assigns a scalar value plus a vector velocity to each grid POINT, but it assigns no information to the corresponding grid CELLS.

	==Legacy (RectilinearGrid) Example from Cornell==		==Legacy (RectilinearGrid) Example from Cornell==

Tohline: Present Cornell RectilinearGrid example

2014-04-20T18:36:10Z

Present Cornell RectilinearGrid example

New page

=Example Input Files & VisTrails Pipelines=
{{LSU_HBook_header}}

This is an example input data file that has been developed based on the structured-points illustration that I found in a tutorial powerpoint presentation posted (circa 2010) [http://www.bu.edu/tech/files/2010/10/VTK-Fall-2010.ppt by Robert Putnam on a Boston University website]; see especially slides 22-25. The file illustrates VTK's ''Simple Legacy Format'' and the STRUCTURED_POINTS dataset format. To aid in implementation, we present the full ascii dataset, two resulting rendered images, and a screen shot of the VisTrails pipeline that was used to generate the image. Note that the image captioned "Point Data" was generated, by default, while the image captioned "Cell Data" was generated after activating the ''SetScalarModeToUseCellData'' method within the '''vtkDataSetMapper''' module. A list of other example input data files [[User:Tohline/vtk/SimpleCubeTutorial#Other_Example_Input_Files_and_VisTrails_Pipelines|is provided near the end of our accompanying ''Simple Cube Tutorial'']].

==Legacy (RectilinearGrid) Example from Cornell==

<div align="center">
<table border="2" align="center" cellpadding="8">
<tr>
<td align="left" colspan="2">
The relevant Legacy-formatted input data file can be accessed at the following URL:
<div align="center">
[http://www.cac.cornell.edu/education/Training/DataAnalysis/RectGrid2.vtk.txt http://www.cac.cornell.edu/education/Training/DataAnalysis/RectGrid2.vtk.txt]
</div>
This ASCII file contains 11,405 lines of data.
</td>
</tr>
<tr>
<td align="center" rowspan="1">
[[Image:CornellRectGrid_pipeline.png|right|thumb|400px|VisTrails Pipeline]]
</td>
<td align="center">
[[Image:CornellRectGrid.png|right|thumb|250px|Cornell Image]]
</td>
</tr>
</table>
</div>

=Related Discussions=
* [[User:Tohline/vtk/SimpleCubeTutorial#Other_Example_Input_Files_and_VisTrails_Pipelines|Other examples]] of properly formatted input data files
* [[User:Tohline/vtk/SimpleCubeTutorial#Simple_Cube_Tutorial|Simple Cube Tutorial]]
** [[User:Tohline/vtk/SimpleCubeTutorial/CubeDetails#Cube_Definition_Details|Specifying Points (Vertices) and Polygons]] of a cube
** [[User:Tohline/vtk/ColorLookupTablea#Color_Lookup_Tables|Defining Color Lookup Tables]]
* [http://www.bu.edu/tech/files/2010/10/VTK-Fall-2010.ppt Robert Putnam's (Boston University) powerpoint tutorial] -- includes a ''Structured_Points'' example, written in Simple Legacy Format