> ## Documentation Index
> Fetch the complete documentation index at: https://support.cim.build/llms.txt
> Use this file to discover all available pages before exploring further.

# Viewing and annotating drawings in CIM Build

> Browse your drawing library with filters and metadata, then open the Canvas to annotate, measure, and tag elements using AI-assisted drawing tools.

The Drawings viewer gives you two ways to work with your project drawings. The list view lets you browse, filter, and inspect your drawing library — including revision history, action items, and per-drawing AI chat. The Canvas is a full annotation and measurement environment where you can draw shapes, tag building elements, and use AI to detect and refine geometry.

<Tabs>
  <Tab title="Drawings list">
    ## Browsing your drawing library

    Click **Drawings** in the left sidebar to open the drawings list.

    **Filtering drawings**

    Use the filters at the top of the list to narrow down what you see:

    * **Revision Set** — filter to the current revision, all revisions, or a specific set.
    * **Discipline** — show only drawings from a particular discipline (for example, architectural or structural).
    * **Sub-project** — limit the view to a specific sub-project.

    **Inspecting a drawing**

    Click any drawing to open it in the viewer. A drawer on the right side of the screen shows:

    * **Metadata** — drawing number, title, revision, and other file properties.
    * **Revision history** — a timeline of all revisions uploaded for that drawing.
    * **Action items** — tasks or issues associated with the drawing.

    **AI chat per drawing**

    Open the AI chat drawer from the right panel to ask questions about the current drawing in natural language. You can query dimensions, element counts, specification references, and more.
  </Tab>

  <Tab title="Canvas">
    ## Working in the Canvas

    Open a drawing in the **Canvas** from the header bar or a direct link. The Canvas is organised into a floating bottom toolbar for drawing tools and a set of sidebar panels for reviewing and editing annotated elements.

    ### Navigation tools

    * **Grab** — pan around the drawing by clicking and dragging.
    * **Select** — click to select existing shapes and objects on the canvas.

    ### Drawing tools

    Use the floating bottom toolbar to access the drawing tools:

    * **Polygon** — draw freeform polygons to outline areas of any shape.
    * **Rectangle** — draw rectangular regions quickly.
    * **Polyline** — draw lines and paths across the drawing.
    * **AI Draw** — let the AI detect and trace shapes automatically based on the drawing geometry.

    ### Action tools

    * **Assign** — tag selected shapes with an element type: wall, door, window, ceiling, and more.
    * **Cut** — split a shape along a line to divide it into separate pieces.
    * **Merge** — combine overlapping shapes into a single unified shape.

    ### Editing tools

    These tools appear when you have a shape selected:

    * **Edit Shape** — drag individual vertices to adjust the shape's geometry manually.
    * **Redraw** — use AI-powered refinement to improve the accuracy of the selected shape.
    * **Smart Polygon** — use interactive point-based adjustment to reshape a polygon precisely.

    ### Sidebar panels

    The left sidebar shows a list of items on the current drawing, organised by element type — walls, doors, windows, and ceilings. Click the type icons to switch between categories.

    The right-side panels provide context-specific detail for selected items:

    * **Edit** — properties of the currently selected item.
    * **Summary** — project statistics and floor-level summaries.
    * **Wall / Door / Window / Finishes Details** — detailed property panels for each element type.

    <Tip>
      Calibrate your drawings before annotating. Open the calibration dialog and set a known measurement so that all area and length calculations reflect real-world dimensions accurately.
    </Tip>

    Use the **Canvas** and **Schedules** tabs in the header to switch between annotation mode and schedule views. Right-click on any shape to access a context menu with additional actions.
  </Tab>
</Tabs>