This is a reference to an ENVIGridLinesLayer object. Use the ENVIView::CreateGridLinesLayer method to create an ENVIGridLinesLayer object.
Example
e = ENVI()
file = Filepath('qb_boulder_msi', $
ROOT_DIR=e.Root_Dir, SUBDIRECTORY=['data'])
raster = e.OpenRaster(file)
view = e.GetView()
layer = view.CreateLayer(raster)
gridlineslayer = view.CreateGridLinesLayer()
gridlineslayer.Transparency = 50
view.Zoom, /FULL_EXTENT
Return Value
This function returns a reference to an ENVIGridLinesLayer.
Methods
Close
GetView
MoveDown
MoveToBottom
MoveToTop
MoveUp
Properties
COORDINATE_SYSTEM (Get, Set)
A fully qualified coordinate system string associated with the view. If no coordinate system is specified, then the coordinate system of the parent view will be used.
GEOGRAPHIC_FORMAT (Get, Set)
An integer that specifies the format for displaying coordinates when the grid represents a geographic coordinate system. The choices are:
- 0: Decimal degrees
- 1: Degrees, minutes
- 2: Degrees, minutes, seconds
GEOGRAPHIC_PRECISION (Get, Set)
An integer value that specifies the number of decimal places displayed for any GEOGRAPHIC_FORMAT setting.
GRID_COLOR (Get, Set)
The color of the grid lines and bounding box. You can specify colors in the following ways:
- A string that contains a standard color name. You can use any of the string values defined by the IDL !COLOR system variable.
- A string that contains a hexadecimal color value, preceded by the # symbol.
- A three-element RGB vector in the form of [red, green, blue].
For example, the following values all specify the same color:
"light_blue"
"#ADD8E6"
[173, 216, 230]
For vector points, this property describes the symbol color. For vector polylines and polygons, this property describes the line color.
Note: When you get the GRID_COLOR property, the returned value is a three-element RGB vector, regardless of how the color was initially specified.
GRID_STYLE (Get, Set)
An integer value that specifies the line style used to draw the polyline. The choices are:
- 0: Solid (default)
- 1: Dotted
- 2: Dashed
- 3: Dash dot
- 4: Dash dot dot dot
- 5: Long dash
- 6: No line
GRID_THICKNESS (Get, Set)
A floating-point value between 0.0 and 10.0 that specifies the line thickness (in points) used to draw the grid lines.
HIDE (Get, Set)
Set this property to 1 to hide the layer, or set it to 0 to display it. The default value is 0.
INTERSECTIONS_SYMBOL_SIZE (Get, Set)
A floating-point value that specifies the size of the intersection symbols, in points.
NAME (Get, Set)
A string value with the name of the layer.
SHOW_BOX (Get, Set)
A Boolean value that controls the display of a bounding box along the edge of the grid.
SHOW_INTERSECTIONS (Get, Set)
A Boolean value that controls the display of crosshairs at grid line intersections.
SHOW_LINES (Get, Set)
A Boolean value that controls the display of the inner grid lines.
SHOW_TEXT (Get, Set)
A Boolean value that controls the display of coordinate labels along the outside edge of the grid.
TEXT_COLOR (Get, Set)
The color of the text labels. You can specify colors in the following ways:
- A string that contains a standard color name. You can use any of the string values defined by the IDL !COLOR system variable.
- A string that contains a hexadecimal color value, preceded by the # symbol.
- A three-element RGB vector in the form of [red, green, blue].
For example, the following values all specify the same color:
"light_blue"
"#ADD8E6"
[173, 216, 230]
For vector points, this property describes the symbol color. For vector polylines and polygons, this property describes the line color.
Note: When you get the TEXT_COLOR property, the returned value is a three-element RGB vector, regardless of how the color was initially specified.
TEXT_FONT_NAME (Get, Set)
A string containing the name of the font used.
TEXT_FONT_SIZE (Get, Set)
A floating-point value that specifies the point size of the font.
TEXT_OFFSET (Get, Set)
A floating-point value that specifies the distance (in points) from the coordinate labels to the grid lines.
TEXT_ORIENTATION_X (Get, Set)
An integer value that specifies the orientation of the X labels:
- 0: Horizontal
- 1: Vertical
TEXT_ORIENTATION_Y (Get, Set)
An integer value that specifies the orientation of the Y labels:
- 0: Horizontal
- 1: Vertical
TRANSPARENCY (Get, Set)
An integer value between 0 (opaque) and 100 (invisible) that specifies the transparency of the layer. The default value is 0.
X_SPACING (Get, Set)
The spacing of grid lines in the X-direction, in the units of the current coordinate system (for example, in meters for a UTM projection).
Y_SPACING (Get, Set)
The spacing of grid lines in the Y-direction, in the units of the current coordinate system (for example, in meters for a UTM projection).
Version History
API Version
4.3
See Also
ENVIView::CreateGridLinesLayer, ENVIRasterLayer, ENVIVectorLayer