MapWinGIS:Grid CreateNew
From MapWindow GIS
CreateNew
Creates a new grid.
See also GridHeader and GridDataType and GridFileType
VB.NET Usage
Function CreateNew(Filename As String, Header As MapWinGIS.GridHeader, DataType As MapWinGIS.GridDataType, InitialValue As Object, Optional InRam As Boolean, Optional FileType As MapWinGIS.GridFileType, Optional cBack As MapWinGIS.ICallback) As Boolean
Parameters
|
Filename | The filename for the new grid. |
| Header | The header defining the attributes of the new grid. |
| DataType | The data type of the new grid. |
| InitialValue | The initial value for each cell of the new grid. |
| InRam | Optional. A boolean value representing the grid being stored in memory(RAM) when True, and the grid being stored on disk when False. |
| FileType | Optional. The grid file type. |
| cBack | Optional. The ICallback object that will receive the progress and error events during the creation of the new grid. |
| ReturnValue | A boolean value representing the success or failure of the creation of the new grid. |
Sample Code
Private Sub CreateNewGrid()
Dim row As Integer, col As Integer
Dim grid As New MapWinGIS.Grid()
Dim newgrid As New MapWinGIS.Grid()
'Create the new grid using the old grid's header and data type
newgrid.CreateNew("", grid.Header, grid.DataType, 0, True, MapWinGIS.GridFileType.Ascii, Me)
'Populate the new grid with the other grid's values
For row = 0 To newgrid.Header.NumberRows - 1
For col = 0 To newgrid.Header.NumberCols - 1
newgrid.Value(col, row) = grid.Value(col, row)
Next
Next
'Save the new grid
newgrid.Save("C:\output.asc")
'Close the grid
grid.Close()
'Close the new grid
newgrid.Close()
End Sub
VB 6 Usage
Function CreateNew(Filename As String, Header As GridHeader, DataType As GridDataType, InitialValue As Object, Optional InRam As Boolean, Optional FileType As GridFileType, Optional cBack As ICallback) As Boolean
Parameters
|
Filename | The filename for the new grid. |
| Header | The header defining the attributes of the new grid. |
| DataType | The data type of the new grid. |
| InitialValue | The initial value for each cell of the new grid. |
| InRam | Optional. A boolean value representing the grid being stored in memory(RAM) when True, and the grid being stored on disk when False. |
| FileType | Optional. The grid file type. |
| cBack | Optional. The ICallback object that will receive the progress and error events during the creation of the new grid. |
| ReturnValue | A boolean value representing the success or failure of the creation of the new grid. |
Sample Code
Private Sub CreateNewGrid()
Dim row As Long, col As Long
Dim grid As New MapWinGIS.grid
Dim newgrid As New MapWinGIS.grid
'Create the new grid using the old grid's header and data type
newgrid.CreateNew "", grid.Header, grid.DataType, 0, True, MapWinGIS.GridFileType.Ascii, Me
'Populate the new grid with the other grid's values
For row = 0 To newgrid.Header.NumberRows - 1
For col = 0 To newgrid.Header.NumberCols - 1
newgrid.Value(col, row) = grid.Value(col, row)
Next
Next
'Save the new grid
newgrid.Save ("C:\output.asc")
'Close the grid
grid.Close
'Close the new grid
newgrid.Close
End Sub
