Page Comparison

The grid layer has a range of special options that are accessed by RMC on the grid title in the tree view (Figure 1). These options are summarized in the Table 1.

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	Table 2
	Table 2

Table 2. Show Properties.

Option	Description
None	Show the grid only
Orthogonal Deviation	Show the orthogonal deviation of the grid by color ramp (see Figure 4)
Cell Aspect Ratio	Show the cell aspect ratio of the grid by color ramp (see Figure 5)
Cell Area	Show the area of the grid cells by color ramp (see Figure 6)
Cell DX	Show the dimension DX of the grid cells by color ramp (see Figure 7)
Cell DY	Show the dimension DY of the grid cells by color ramp (see Figure 8)

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	Figure 4
	Figure 4

Figure 4. Show Properties: Orthogonal Deviation.

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	Table 3
	Table 3

Table 3. Show Labels for grid layer.

Option	Description
None	Only the grid is displayed
Cell L Index	Show the L index number of the grid cells, each cell has only an L index. (Figure 10)
Cell I,J Indices	Show the I and J indices number of the grid cells, each cell has a pair of I and J indices. (Figure 11). This option sometimes is helpful when we create a new grid that we want to merge with the previous grid. In this case, we need to know the number of cells along a segment of the previous grid.
Nodal I,J Indices	Show the I and J indices number of the grid nodes, each grid node has a pair of I and J indices. (Figure 12)
Bottom ElevationTo	be implemented later. Show elevation values of the grid nodes. (Figure 13)

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	Figure 10
	Figure 10

Figure 10. Show Labels: Cell L Index.

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Figure 12. Show Labels: Nodal I,J Indices.

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	Figure 13
	Figure 13

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Figure 13. Show Labels: Bottom Elevation.

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	Table 4
	Table 4

Table 4. Grid Indexing

Option	Description
Transpose I - J Indices	Reverses both the I and J indices of the selected grid at the same time.
Flip I Indices	Reverses only the I indices of the selected grid.
Flip J Indices	Reverses only the I indices of the selected grid.
Rotate Indices Clockwise	Orders the indices in a clockwise direction.
Rotate Indices Counter-Clockwise	It is the opposite of the Rotate Indices Clockwise.

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Option	Description
Export Grid	Export the selected grid layer to an external grid file. Grid file formats can be a native file of Grid+ (.gpc), CVLGrid (.cvl), Delft3D (*.grd), or others. This option also can be accessed from the Export button in the main toolbar.
Export To EFDC	Export the selected grid layer to an EFDC input file (including corners.inp, dxdy.inp, lxly.inp). These files can open with EEMS.
Export To Shapefile	Export the selected grid layer to a shapefile which can be opened with ArcGIS, QGIS, Global Mapper, etc.
Export To KML	Export the selected grid layer toa to a KML file which can be opened with Google Earth, Global Mapper, etc.
Export Outline	Export outline of the selected grid layer to a text file (*.p2d).

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Once selecting the Export Grid option, the Export to Grid form will be displayed, as shown in Figure 15. Define the file type from the drop-down list then enter a file name. Define the folder location to locate the file then click the Save button. Then the Coordinate System form will pop up, select the proper project then click the OK button as shown in Figure 16. When the exporting is done, a message will pop up as shown in Figure 17, click the OK button to close the form.