Elementul Hartă¶

Proprietăți principale¶

Dialogul Proprietăților principale de pe fila Proprietăților Elementului hărții, oferă următoarele functionalități (v. figure_composer_map_1):

Figure Composer Map 1:

Fila Proprietăților Elementului de pe Hartă

• The Preview area allows you to define the preview modes ‘Rectangle’, ‘Cache’ and ‘Render’, as described above. If you change the view on the QGIS map canvas by changing vector or raster properties, you can update the Print Composer view by selecting the map element in the Print Composer and clicking the [Update preview] button.

• Câmpul Scării setează o scară manuală.

• The field Map rotation allows you to rotate the map element content clockwise in degrees. The rotation of the map view can be imitated here. Note that a correct coordinate frame can only be added with the default value 0 and that once you defined a Map rotation it currently cannot be changed.

• Draw map canvas items lets you show annotations that may be placed on the map canvas in the main QGIS window.

• You can choose to lock the layers shown on a map item. Check Lock layers for map item. After this is checked, any layer that would be displayed or hidden in the main QGIS window will not appear or be hidden in the map item of the Composer. But style and labels of a locked layer are still refreshed according to the main QGIS interface. You can prevent this by using Lock layer styles for map item.

• The button allows you to add quickly all the presets views you have prepared in QGIS. Clicking on the button you will see the list of all the preset views: just select the preset you want to display. The map canvas will automatically lock the preset layers by enabling the Lock layers for map item: if you want to unselect the preset, just uncheck the and press the button. See Panoul Straturilor to find out how to create presets views.

  Locked layers in the map can also be data-defined, using the icon beside the option. When used, this overrides the selection set in the drop-down list. You need to pass a list of layers separated by | character. The following example locks the map item to use only layers layer 1 and layer 2:

  concat ('layer 1', '|', 'layer 2')
  

Extinderi¶

Dialogul Extinderilor de pe fila elementului hărții oferă următoarele functionalități (v. figure_composer_map_2):

Figure Composer Map 2:

Dialogul Extinderilor Hărții

• The Map extents area allows you to specify the map extent using X and Y min/max values and by clicking the [Set to map canvas extent] button. This button sets the map extent of the composer map item to the extent of the current map view in the main QGIS application. The button [View extent in map canvas] does exactly the opposite, it updates the extent of the map view in the QGIS application to the extent of the composer map item.

If you change the view on the QGIS map canvas by changing vector or raster properties, you can update the Print Composer view by selecting the map element in the Print Composer and clicking the [Update preview] button in the map Item Properties tab (see figure_composer_map_1).

Grile¶

The Grids dialog of the map Item Properties tab provides the possibility to add several grids to a map item.

• Cu butoanele plus și minus puteți adăuga sau elimina o grilă selectată.

• Cu ajutorul butoanelor în sus și în jos puteți muta o grilă în listă, pentru a seta prioritatea de desenare.

Dacă faceți dublu clic pe grila adăugată îi puteți da un alt nume.

Figure Composer Map 3:

Dialogul Grilelor Hărții

After you have added a grid, you can activate the checkbox Draw grid to overlay a grid onto the map element. Expand this option to provide a lot of configuration options, see Figure_composer_map_4.

Figure Composer Map 4:

Dialogul de Desenare a Grilei

As grid type, you can specify to use a ‘Solid’, ‘Cross’, ‘Markers’ or ‘Frame and annotations only’. ‘Frame and annotations only’ is especially useful when working with rotated maps or reprojected grids. In the divisions section of the Grid Frame Dialog mentioned below you then have a corresponding setting. Symbology of the grid and its rendering mode can be chosen. See Modul de randare. Furthermore, you can define an interval in the X and Y directions, an X and Y offset, and the width used for the cross or line grid type.

Figure Composer Map 5:

Dialogul Cadrului Grilei

• There are different options to style the frame that holds the map. Following options are available: No Frame, Zebra, Interior ticks, Exterior ticks, Interior and Exterior ticks and Lineborder.
• With ‘Latitude/Y only’ and ‘Longitude/X only’ setting in the divisions section you have the possibility to prevent a mix of latitude/y and longitude/x coordinates showing on a side when working with rotated maps or reprojected grids.

• De asemenea, modul de randare avansat este disponibil pentru rețele.

• The Draw coordinates checkbox allows you to add coordinates to the map frame. You can choose the annotation numeric format, the options range from decimal to degrees, minute and seconds, with or without suffix, aligned or not and a custom format using the expression dialog. You can choose which annotation to show. The options are: show all, latitude only, longitude only, or disable(none). This is useful when the map is rotated. The annotation can be drawn inside or outside the map frame. The annotation direction can be defined as horizontal, vertical ascending or vertical descending. Finally, you can define the annotation font, the annotation font color, the annotation distance from the map frame and the precision of the drawn coordinates.

Figure Composer map 6:

Dialogul de Desenare a Coordonatelor Grilei

Prezentare generală¶

Dialogul Vizualizărilor de pe fila hărții cu Proprietățile Elementului oferă următoarele functionalități:

Figure Composer Map 7:

Dialogul Vederilor Hărții

You can choose to create an overview map, which shows the extents of the other map(s) that are available in the composer. First you need to create the map(s) you want to include in the overview map and the map you want to use as the overview map, just like a normal map.

Then expand Overviews option and press the green plus icon-button to add an overview. Initially this overview is named ‘Overview 1’ (see Figure_composer_map_7). You can change the name when you double-click on the overview item in the list named ‘Overview 1’ and change it to another name.

• Cu butoanele plus și minus puteți adăuga sau elimina o vizualizare.

• Cu ajutorul butoanelor în sus și în jos puteți muta o vizualizare în listă, pentru a seta prioritatea de desenare.

Când selectați elementul imaginii de ansamblu în lista, îl puteți personaliza.

• The Draw “<name_overview>” overview needs to be activated to draw the extent of selected map frame.
• The Map frame combo list can be used to select the map item whose extents will be drawn on the present map item.

• Stilul Cadrului vă permite să schimbați stilul cadrului pentru imaginea de ansamblu.

• The Blending mode allows you to set different transparency blend modes.
• The Invert overview creates a mask around the extents when activated: the referenced map extents are shown clearly, whereas everything else is blended with the frame color.
• The Center on overview puts the extent of the overview frame in the center of the overview map. You can only activate one overview item to center, when you have added several overviews.