一个 Canvasis a single drawing sheet within a SkyCiv CAD project. Every project contains at least one canvas, and you can add as many as you need – one per floor level, one per detail, or one per drawing sheet.
Canvases are managed from theCanvasaccordion in the left sidebar. Each canvas stores its own geometry, annotations, and layer data independently.
The Canvas Panel
All canvas management is done from theCanvas 手风琴, found in the left sidebar. 点击 Canvasheader to expand it. The panel lists every canvas in the project and provides controls for adding, switching, renaming, reordering, copying, and deleting canvases.
The currently active canvas is highlighted in the list. Only one canvas is active at a time – all drawing tools operate on the active canvas.
Basic Operations
Add a Canvas
Create a new, blank drawing sheet in the project
点击 Add New Canvasbutton at the bottom of the Canvases panel. A new blank canvas is created and immediately made active.
一步一步
1打开 Canvasesaccordion in the left sidebar.
2请点击 Add New Canvasat the bottom of the panel.
3The new canvas appears in the list and becomes the active canvas.
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提示:New canvases are namedCanvas 2, Canvas 3, 等等. 默认 – rename them immediately to keep the project organised.
Switch Between Canvases
Move to a different drawing sheet
Click anywhere on a canvas row in the Canvases panel to make it active. The current canvas is saved automatically before switching, so no data is lost.
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提示:The active canvas row is highlighted in the list. Any selection on the previous canvas is cleared when you switch.
Rename a Canvas
Give a canvas a meaningful name for easier navigation
Click directly into the name field on a canvas row to edit it inline. Type the new name and press通过去or click away to confirm. Canvas names must be unique within the project – duplicates are automatically resolved.
点击 duplicate icon (two overlapping squares) on any canvas row. A full copy of that canvas – including all geometry, annotations, and layer assignments – is inserted directly after it in the list.
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提示:Copying is a quick way to create a new floor level that shares the same column grid – 复制, then modify only what changes.
Delete a Canvas
Permanently remove a canvas and all its content
点击 red trash iconon a canvas row and confirm the prompt. Deletion is permanent and removes all geometry, annotations, and layer data on that canvas. A confirmation dialog is shown by default – 查看 “Don’t ask again”to skip it in future.
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注意:The trash icon is disabled when only one canvas remains – a project must always have at least one canvas. Deletion cannot be undone.
Reorder Canvases
Change the position of a canvas in the list
使用 向上 和 down arrowbuttons on each canvas row to move it earlier or later in the list. Arrow buttons are only visible when the panel is inHierarchy 命令 – they are hidden whenSort by Elevationis active (elevation order is controlled by the elevation value, not manual position).
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提示:If the arrow buttons are missing, 切换 Sort by Elevationoff to return to hierarchy mode where manual ordering is available.
Elevation and Sort Order
When a project represents a multi-storey structure, each canvas can be assigned an海拔value that places it at the correct height in the 3D structural model (S3D export). The canvas list can be sorted either by these elevation values or in a custom manual order.
Sort by Elevation Toggle
Switch between elevation order and custom hierarchy order
的 Sort by elevationtoggle at the bottom of the Canvases panel switches between two display modes:
Sort by Elevation (上):Canvases are ordered from lowest to highest elevation. 一个 抵消column appears showing each canvas’s elevation value. This order mirrors how canvases will be stacked in the S3D 3D model export.
Hierarchy (离开):Canvases appear in a custom order that you control with the up/down arrow buttons. Canvas groups (master/child) show their indented hierarchy here.
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提示:Canvases without an assigned elevation appear at the bottom of the list in elevation mode, sorted by their internal index.
Canvas Elevation
Assign a height value used when exporting to the 3D structural model
什么时候 Sort by Elevationis on, 一个 抵消column appears. Canvases without an elevation show a+ 纽扣 – click it to assign one. Canvases with an elevation show an editable number field.
The elevation value determines how high each floor is placed in the 3D structural export. The unit matches the project length unit (毫米, 厘米, 米, 英尺, 在).
一步一步
1使能够 Sort by Elevationto show the Offset column.
2点击 +button next to any canvas to assign it an elevation.
3Type the elevation value and press通过去to confirm. The list re-sorts automatically.
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提示:Assign elevation 0 to the ground floor canvas. Suggested values for new canvases are automatically set to 3000 mm above the highest existing elevation.
Canvas Groups (Master / 孩子)
When multiple floor levels share the same structural layout (例如. identical column grids across several floors), you can link them into acanvas group. One canvas becomes theMasterand the others become孩子们.
Structural changes made to the master can bepropagatedto all children in one click, keeping repeat floors in sync without manually copying geometry.
In the canvas list, the master is labelledmand children are labelledhip-delete-未使用, both coloured with a shared group accent colour.
Link Canvases into a Group
Designate a master canvas and link child canvases to it
请点击 Link Canvasesat the bottom of the Canvases panel to open the linking wizard. Select which canvas will be themasterand which canvases will be its孩子们. Confirm to create the group.
一步一步
1打开 Canvasespanel and clickLink Canvases.
2Choose themaster canvasfrom the wizard.
3Select one or morechild canvasesto link to it.
4Confirm to create the group. 的 m / hip-delete-未使用labels and accent colour appear in the list.
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提示: 在 Hierarchy 视图, master groups can be collapsed and expanded using the triangle toggle next to the master canvas row.
Propagate Structural Changes
Push master canvas structural updates to all linked children
When structural geometry on a master canvas changes, 一个 amber highlightappears on the master row and its children to signal the group is out of sync. 点击 propagate button (share icon) on the master row and confirm to push the updated structural data to all child canvases.
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注意:Propagation overwrites structural data on child canvases. This action cannot be undone. Non-structural content on children (annotations, 方面, revision clouds) is preserved.
Remove a Child from a Group
Detach a child canvas so it no longer receives propagated updates
点击 chain-broken iconon a child canvas row and confirm the prompt. The canvas is removed from the master group and becomes an independent canvas. Its existing geometry is retained – it simply stops receiving future propagated updates from the master.
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提示:Removing a child does not delete or modify its content – it only breaks the link to the master. You can re-link it at any time usingLink Canvases.
