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CARA CROP GAMBAR DI QUANTUM GIS UPDATE

Make the control point, which is selected in the map, visible within your control point table. This option is only available when your residuals are shown in degrees. Switch the residuals from degrees to meters. This option is only available when the coordinate system of the map supports degrees, minutes, and seconds. Switch the coordinates between decimal degrees and degrees, minutes, and seconds. Check the Use Control Point box to activate the control point. This is useful when you want to manually type the control point coordinates.īy default, this control point is unavailable. Save the control points to a georeferencing text file.Įxport transformation details and control points to an HTML report.Īdd an empty row to the table. The Control Point Table opens based on the Tables setting of the User Interface options. The sum of the errors is presented in the root mean square (RMS) error. Each row represents a control point pair and lists the starting coordinates, adjusted coordinates, and residual error. The Control Point Table provides information regarding the control point pairs that have been created. The Control Point Table and the Review group are used to check the quality of the control points.

Cancel-Do not delete any control points.

When you choose to delete all control points, you are prompted to confirm that choice as follows: To zoom in closer, click this tool multiple times. Select and highlight a control point pair in the map display.Ĭenter and zoom in to a selected control point. Show a table that contains control points and residuals. While you are georeferencing, there are several keyboard shortcuts that can help you perform your task quickly. Reset the raster to its original location. This is useful when Auto Apply is switched off.

CARA CROP GAMBAR DI QUANTUM GIS UPDATE

Update the display with the current control points and transformation. You can switch this option off if you do not want the display to update after each control point you create. Update the display with each control point pair that is created. The various transformations require a minimum number of control points before you can set the transformation. Then, choose the corresponding location on the target. First, click the location of the raster you want to georeference.

Cancel-Do not import any control points.Īdd control point pairs to georeference your raster.

Append the imported control points to the existing ones.

No-Do not delete the existing control points.

Yes-Delete the existing control points and import the control points from the file.

If control points already exist in the control point table, you can choose to replace your existing control points as follows: Import the control points into the georeferencing session. The source raster and target raster must be relatively close in terms of geographic location, spectral resolution, and spatial resolution for the autoregistration to work. It also allows you to choose the transformation or reset the source raster to the default location.Īutomatically create control points for the source raster against a target raster. The Adjust group has tools for importing or creating control points. Turns the raster 90 degrees left or 90 degrees right. You can manually rotate the raster, or you can press the A key to specify the degrees in the text box.įlips the raster horizontally or vertically.

When the vertex pointer appears, drag the anchor to the desired location. On the map, at the center of the raster, hover over the anchor and press the Ctrl key. You can manually choose the anchor location for the rotation. Rotates the raster you are georeferencing.

You can manually scale the raster, or you can press the A key to specify the scale factor in the text boxes. You can manually choose the anchor location for scaling. Resizes the raster you are georeferencing. You can manually shift the raster, or you can press the A key to specify the x- and y-shift in the text boxes. Shifts the raster you are georeferencing. Places the raster you are georeferencing into the current display of the map extent. Finds locations when you type an address, a place-name, or coordinate values.Īllows you to set the coordinate system of the map.