PointGridWizard

Creates a grid of points using user defined grid type and distance between the points.

Inputs:

Initial extent of the grid - the grid will be generated using the coordinate system and units of:
- the current view
- a layer from the current view
Output spatial reference - the grid will be stored in the spatial reference of
- the current view
- a layer from the current view
Grid type
- Square
- Rectangle
- Triangle - equilateral
Distance between the points - in the case of rectangle X and Y spacing are required

Outputs:

New Point feature class

Notes:

The initial extents of the grid are defined by the extents of the selected layer or current extents of the data frame. The extents can be changed manually during the dialog.
The cell size will be in the units of the input layer or data frame. If the input is Unprojected (Geographic "Projection") there is an oprion to input values in Degrees - Minutes - Seconds
If the input is Unprojected only values between X = -180 To 180 and Y = -90 To 90 will be accepted
If the Input is Projected and the Output is in different projection, the user should make sure that the Grid extents are valid
In order to avoid incorrect inputs, the size of the grid is limited to 4,000,000 cells (2000 by 2000)
A ET_Index field will be added to the point attribute table to indicate the index of each point in the Grid. The point in the bottom left corner of the Grid will have an index of "0-0"

ToolBox implementation - two tools are available for the Point Grid function
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Command line syntax - ET_GPPointGridOrigin

ET_GPPointGridOrigin <out_feature_class> {out_spatial_reference} <grid_type> <x_origin> <y_origin> <number_columns> <number_rows> <column_width> {row_height}

Parameters

Expression	Explanation
<out_feature class>	A String - the full name of the output feature class (A feature class with the same full name should not exist)
{out_spatial_reference}	The spatial reference of the output feature class. If not specified the output will be created with Unknown coordinate system
<grid_type>	A String controlling the type of the output point grid. Valid values "Square", "Rectangle" or " Triangle"
<x_origin>	A Double representing the X coordinate of the lower left point of the grid.
<y_origin>	A Double representing the Y coordinate of the lower left point of the grid.
<number_columns>	A Long representing the number of columns that the resulting grid will have
<number_rows>	A Long representing the number of rows that the resulting grid will have
<column_width>	A Double representing the the width of each grid column (X - cell size)
{row_height}	A Double representing the the height of each grid column (Y - cell size). Needed only for a "Rectangle" type grid. If not used row_height = column_width will be assigned.

Scripting syntax - ET_GPPointGridOrigin

ET_GPPointGridOrigin (out_feature_ class out_spatial_reference grid_type x_origin y_origin number_columns number_rows column_width row_height)

Command line syntax - ET_GPPointGridExtents

ET_GPPointGridExtents <out_feature_class> {out_spatial_reference} <grid_type> {get_extents_from} <Extent> <X_Cell_Size> <Y_Cell_Size>

Parameters

Expression	Explanation
<out_feature class>	A String - the full name of the output feature class (A feature class with the same full name should not exist)
{out_spatial_reference}	The spatial reference of the output feature class. If not specified the output will be created with Unknown coordinate system
<grid_type>	A String controlling the type of the output point grid. Valid values "Square", "Rectangle" or " Triangle"
{get_extents_from}	A String - a layer name or the full name of the a feature class to be used as a source for the extents (see examples below)
<Extent>	A Double representing the Y coordinate of the lower left corner of the grid. (see examples below)
<X_Cell_Size>	A Double representing the size of the call in X direction
<Y_Cell_Size>	A Double representing the size of the call in Y direction.

Scripting syntax - ET_GPPointGridExtents

ET_GPPointGridExtents (out_feature_ class out_spatial_reference grid_type get_extents_from Extent X_Cell_Size Y_Cell_Size)

See the explanations above:
<> - required parameter
{} - optional parameter