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Opțiuni Comune ale Elementelor din Compozitor

Elementele compozitorului au un set de proprietăți comune, pe care le veți găsi în partea de jos a filei cu Proprietățile Articolului: Poziția și dimensiunea, Rotirea, Cadrul, Fundalul, ID-ul elementului și Randarea (v. figure_composer_common_1).

Figure Composer Common 1:

../../../../_images/common_properties.png

Dialogul proprietăților comune ale elementelor

  • Dialogul Ppoziției și dimensiunilor permite definirea dimensiunii și a poziției cadrului care conține elementul. Puteți alege, de asemenea, care Punct de Referință va fi setat la coordonatele X și Y, definite anterior.

  • Rotirea stabilește rotația elementului (în grade).

  • The checkbox Frame shows or hides the frame around the item. Click on the [Color] and [Thickness] buttons to adjust those properties.
  • Use the Background color menu for setting a background color. Click on the [Color...] button to display a dialog where you can pick a color or choose from a custom setting. Transparency can be adjusted through atlering the alpha field settings.
  • Use the Item ID to create a relationship to other Print Composer items. This is used with QGIS server and other potential web clients. You can set an ID on an item (for example, a map or a label), and then the web client can send data to set a property (e.g., label text) for that specific item. The GetProjectSettings command will list the items and IDs which are available in a layout.
  • Modul de Randare vă ajută să setați vizibilitatea și modul de afișare a elementului.

Note

  • If you checked checkbox Use live-updating color chooser dialogs in the QGIS general options, the color button will update as soon as you choose a new color from Color Dialog windows. If not, you need to close the Color Dialog.
  • The dataDefined Data defined override icon next to a field means that you can associate the field with data in the map item or use expressions. These are particularly helpful with atlas generation (See Butoane de Suprascriere Definită de Date).

Modul de randare

QGIS permite, de acum, randarea avansată pentru elementele de Compozitor, la fel ca și pentru straturile vectoriale și raster.

Figure Composer common 2:

../../../../_images/rendering_mode.png

Modul de randare

  • Blending mode: With this tool you can achieve effects which would otherwise only be achieved using graphic rendering software. The pixels of your overlaying and underlaying items can be mixed according to the mode set (see Modurile de Fuziune for description of each effect).
  • Transparency slider: You can make the underlying item in the Composer visible with this tool. Use the slider to adapt the visibility of your item to your needs. You can also make a precise definition of the percentage of visibility in the menu beside the slider.
  • checkbox Exclude item from exports: You can decide to make an item invisible in all exports. After activating this checkbox, the item will not be included in export to PDF, print etc..

Dimensiunea și poziția

Each item inside the Composer can be moved and resized to create a perfect layout. For both operations the first step is to activate the select Select/Move item tool and to click on the item; you can then move it using the mouse while holding the left button. If you need to constrain the movements to the horizontal or the vertical axis, just hold the Shift button on the keyboard while moving the mouse. If you need better precision, you can move a selected item using the Arrow keys on the keyboard; if the movement is too slow, you can speed up it by holding Shift.

A selected item will show squares on its boundaries; moving one of them with the mouse, will resize the item in the corresponding direction. While resizing, holding Shift will maintain the aspect ratio. Holding Alt will resize from the item center.

The correct position for an item can be obtained using the grid snapping or smart guides. Guides are set by clicking and dragging within the ruler area. To move a guide, click on the ruler, level with the guide and drag it to a new position. To delete a guide move it off the canvas. If you need to disable the snap on the fly, hold Ctrl while moving the mouse.

You can choose multiple items with the select Select/Move item button. Just hold the Shift button and click on all the items you need. You can then resize/move this group like a single item.

Once you have found the correct position for an item, you can lock it by using the items on the toolbar or ticking the box next to the item in the Items tab. Locked items are not selectable on the canvas.

Locked items can be unlocked by selecting the item in the Items tab and unchecking the tickbox or you can use the icons on the toolbar.

Pentru a deselecta un element, este suficient să țineți apăsat butonul Shift.

Inside the Edit menu, you can find actions to select all the items, to clear all selections or to invert the current selection.

Alinierea

Raising or lowering the visual hierarchy for elements are inside the raiseItems Raise selected items pull-down menu. Choose an element on the Print Composer canvas and select the matching functionality to raise or lower the selected element compared to the other elements. This order is shown in the Items tab. You can also raise or lower objects in the Items tab by clicking and dragging an object’s label in this list.

Figure Composer Common 3:

../../../../_images/alignment_lines.png

Liniile de ghidare din Compozitorul de Hărți

There are several alignment options available within the alignLeft Align selected items pull-down menu (see figure_composer_common_3). To use an alignment function, you first select the elements then click on the matching alignment icon. All selected elements will then be aligned to their common bounding box. When moving items on the Composer canvas, alignment helper lines appear when borders, centers or corners are aligned.