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Composer Items Common Options

Composer items have a set of common properties you will find at the bottom of the Item Properties panel: Position and size, Rotation, Frame, Background, Item ID, Variables and Rendering (See figure_composer_common).


Common Item Properties Dialogs

  • The Position and size dialog lets you define the size and position of the frame which contains the item. You can also choose which Reference point will be set at the X and Y coordinates previously defined.
  • Rotation 부분에서 항목의 기울기를 (도 단위로) 설정할 수 있습니다.

  • 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.
  • Rendering mode helps you set whether and how the item can be displayed.


  • 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 Data Defined Override Buttons).

렌더링 모드

QGIS now allows advanced rendering for Composer items just like vector and raster layers.


렌더링 모드

  • Blending mode: 이 도구를 통해 그래픽 프로그램에서만 가능했던 특별한 효과를 줄 수 있습니다. 사용자의 위에 있는 항목과 아래에 있는 항목의 픽셀들을 설정한 모드에 따라 혼합할 수 있습니다. (각 효과에 대한 설명은 혼합 모드 를 참조하세요.)

  • 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: 모든 내보내기에서 항목을 보이지 않도록 만들 수 있습니다. 이 체크박스를 활성화하면, 선택한 항목이 인쇄물, PDF 파일 등등에 포함되지 않을 것입니다.

Size and position

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 panel. Locked items are not selectable on the canvas.

Items 패널에서 항목을 선택한 다음 체크박스를 체크 해제해서 고정된 항목을 고정 해제할 수 있습니다. 또는 툴바에 있는 unlocked 아이콘을 사용하면 고정된 모든 항목을 고정 해제할 수 있습니다.

To unselect an item, just click on it holding the Shift button.

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


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 panel. You can also raise or lower objects in the Items panel by clicking and dragging an object’s label in this list.


Alignment helper lines in the Print Composer

There are several alignment options available within the alignLeft Align selected items pull-down menu (see figure_composer_common_align). 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.


The Variables lists all the variables available at the composer item’s level (which includes all global, project and composition’s variables). Map items also include Map settings variables that provide easy access to values like the map’s scale, extent, and so on.

Variables 에서, 항목 수준 변수를 관리할 수도 있습니다. signPlus 버튼을 클릭해서 새 사용자 지정 항목 수준 변수를 추가합니다. 마찬가지로, 목록에서 사용자 지정 항목 수준 변수를 선택한 다음 signMinus 버튼을 클릭해서 제거합니다.

More information on variables usage in the General Tools Variables section.