Get the bounding box (extents) of all entities in the drawing.

Analyze the drawing and return entity counts grouped by type and by layer.

Returns: total_entities, by_type (sorted by count), by_layer (sorted by count). This is unique to AutoCAD MCP Pro – no other MCP server provides this!

Find all entities within a rectangular region (crossing selection).

Uncapped: a window over a busy drawing returns every hit. Project with fields and/or compact before widening the window.

Return detailed statistics for each layer: entity count, types present.

AutoCAD's LIST: the full DXF attribute set for one handle.

dxf_attributes is the raw attribute set entity_get deliberately does not carry. Coordinates in it are WCS, like everywhere else in this server, and extrusion is reported so the entity's own frame is still visible.

Area and perimeter of a polygon you supply the vertices for.

This measures the numbers in the call, NOT the drawing. To measure something that exists, use analysis_measure_entity(handle) — it reads the real geometry, including curvature this tool can only see if you pass it.

Straight-edged polygons are exact. Pass a third bulge element per vertex for arc edges; omitting it on curved geometry under-reports (28% on a semicircular edge), which is why assumes says what was taken on faith.

Measure the Euclidean distance between two points.

Measure something already in the drawing, by handle.

Reads the real geometry, so polyline bulges (arc edges) are included — reading vertices back and shoelacing them yourself loses 28% of the area on a semicircular edge, silently.

Measurable: LWPOLYLINE, 2D POLYLINE, CIRCLE, ELLIPSE, SPLINE, HATCH, SOLID, TRACE, 3DFACE. REGION and 3DSOLID need the live COM backend (their area is in ACIS data ezdxf cannot evaluate) and refuse with capability: "measure_area_acis". LINE/TEXT/INSERT bound no area on any engine and are a plain error, not a capability gap.

The payload states its own accuracy: exact is false when the shape had to be flattened (then flatten_tolerance says how finely), assumed_closed is true when an open boundary was closed the way AutoCAD's AREA does, and self_intersecting warns when the shoelace cancelled crossed lobes — a bowtie measures 0.0 and that number is worse than useless unflagged.

Get all entities on a specific layer. Returns entity list with handles.

Capped at MAX_LIST_LIMIT (default 5000). The plain list cannot say it was capped — the warning goes to the log stream, which most clients never show the model — so use compact=True when the count matters: its total is the layer's real population and truncated states whether the cap fired.

Get all entities of a specific type. Returns entity list with handles.

Capped at MAX_LIST_LIMIT (default 5000); as with analysis_select_by_layer, compact=True is the only shape that reports total and truncated.

Create a new block definition from existing entities in the drawing.

Works on both engines. The originals stay in model space — this defines a reusable block from them rather than consuming them the way AutoCAD's BLOCK command does; use block_insert to place copies, and delete the originals yourself if you want the command's behaviour.

Handles that do not resolve are listed in skipped rather than silently dropped, and a call where none resolve fails instead of leaving an empty definition behind.

Explode a block reference into its individual component entities.

Find all insert references to a specific block definition.

Bounded by the backend's own default entity_list page (200 INSERTs scanned), which is a pre-existing limit, not a new one: the compact envelope's total counts the references found within that scan.

Get all attribute values from a block reference as {TAG: value} dict.

Insert a block and optionally set attribute values.

List all block definitions in the drawing (name, origin, attribute count, entity count).

Never truncated — the whole block table is returned — so a compact envelope here always reports truncated=false.

Update attribute values in a block reference.

Chain the given entities into one closed polyline.

The handles may arrive in any order — putting them in chain order is the tool's job. A chain that does not close is refused, and the error names the coordinates of the gap.

AutoCAD's BOUNDARY/BPOLY: create a closed polyline around a seed point.

Returns the nearest enclosing loop, so a seed inside an island gives the island rather than the outer region. Straight edges are split where they cross, so a line drawn across a shape divides it the way it looks like it should. A seed with no enclosing loop is refused, and the error names the gap when the edges nearly close.

Execute an ordered list of tool calls in ONE round trip.

N calls collapse into one request/response pair, and bind lets a later step reference an earlier step's result so handles never have to be echoed back through the model.

steps=[
  {"tool": "entity_create_line",  "args": {...}, "bind": "edge"},
  {"tool": "point_from_snap",     "args": {"handle": "$edge", "snap": "mid"},
                                  "bind": "mid"},
  {"tool": "entity_create_circle","args": {"cx": "$mid.x", "cy": "$mid.y",
                                           "radius": 4}},
]

Successful steps report only their handle; pass verbose=True for the full result. Anything without a handle is returned whole.

VALIDATION runs first, always: an unknown tool, a schema-invalid argument or a reference no earlier step binds refuses the whole batch before anything executes. on_error governs run-time failures only. dry_run=True returns that validation report and executes nothing.

ERRORS are typed, never text: each failed step carries error.kind - one of unsupported (with the backend capability), invalid_args, refused, failed, unknown_tool, unresolved_ref, denied, malformed_step.

ATOMICITY is reported, not assumed. Read the atomicity block: on the headless backend rollback restores a full document snapshot; on live AutoCAD it sends an UNDO whose landing AutoCAD never confirms. The default on_error="stop" claims nothing and is exact on both.

NOT CALLABLE from a batch: the raw command/LISP escape hatches, and cad_batch itself. Call those directly.

For a few hundred entities of the same kind, entity_batch_create is denser still (no per-step tool name) - and it can be one step of a cad_batch.

Delete every entity on the CONSTRUCTION layer. Idempotent. Must be called before drawing_finalize to satisfy construction_left critique.

Create an infinite construction line on the CONSTRUCTION layer. Use as scaffolding; call construction_clear() before finalize.

Place a datum feature symbol (filled triangle + boxed letter).

Establishes the datum so a feature control frame referencing this letter passes the gdt critique focus.

Create an aligned dimension that measures the true distance between two points.

Create an angular dimension measuring the angle between two lines from a vertex.

Generate ISO 129 dimensions across the listed entities in the chosen style. V1 supports LINE entities only.

Create a diameter dimension for a circle, optionally toleranced (e.g. ⌀20 H7).

Create a linear dimension, optionally toleranced (ISO 129 or ISO 286 fit).

Create a radius dimension for a circle or arc, optionally toleranced.

Bootstrap a full ISO-conformant layer set with correct colors and lineweights. Idempotent — existing layers are not modified.

Audit the drawing: repair every fixable structural problem, and report it.

This mutates the drawing. fixes lists repairs that have ALREADY been applied, so save afterwards to keep them; errors lists problems that could not be repaired. On the live COM backend AutoCAD applies repairs but hands back no counts, so they arrive as null with detail: "unavailable" rather than as zero.

Close the current drawing. If save is True (default), the drawing is saved to its current path before closing. After this call, you must call drawing_new or drawing_open before any other tool.

Run premium-quality checks. Returns zero issues for a clean drawing.

Standard production gate: must return [] before drawing_finalize.

Create a hashed, validated delivery bundle and verify DXF save/reopen parity.

The result status is success, failed_validation or failed_export. Failure intentionally keeps all generated artifacts for diagnosis.

Export the current drawing as a DXF file.

Export the current drawing (or a paper-space layout) to PDF.

Premium completion gate: runs BOTH the 8-step validator AND the premium critique focuses (iso128, layer_color, dim_overlap, untrimmed_corner, duplicate_entities, construction_left), then saves to disk, exports a screenshot, and returns the DWG path.

Raises ToolError if any validator 'error' finding is present, or if critique reports an 'error' (or, with strict_critique=True, any critique issue). Critique warnings are surfaced under payload['critique'] without failing the gate by default.

Get comprehensive metadata for the current drawing.

Returns: name, path, entity_count, layer_count, block_count, extents (min/max), units, version, backend name.

Create a new empty drawing, optionally from a template (.dwt).

When bootstrap=True (default), the drawing is also seeded with the standard engineering linetypes (CENTER/HIDDEN/PHANTOM) and layers (GEOMETRY, DIM, CENTER, HIDDEN, PHANTOM, HATCH, TEXT, TITLEBLOCK).

Open an existing DXF drawing file (DWG too, on the live COM backend).

T0.2: a .dwg path is refused up front when the active backend has no dwg capability. ezdxf sniffs content rather than extensions, so it would parse a mislabelled DXF-in-a-.dwg and this tool would answer with a document that does not exist in that format.

Commit a PlanSpec before any geometry is created.

The PlanSpec is stored on the backend and surfaced for reference during the workflow (it is not replayed as a critique). Always call this FIRST in a premium workflow.

Validate and normalize requirements before committing a drawing plan.

Purge all unused objects (layers, blocks, linetypes, styles) from the drawing.

Reapply the operation you just undid.

Same history as drawing_undo, so the headless backend needs EZDXF_UNDO_DEPTH set. Anything drawn after an undo discards the redo branch — otherwise redo would restore a state that never existed, with geometry you had removed reappearing beside geometry you drew afterwards.

Run a bounded, transaction-safe critique/repair/re-critique loop.

Save the current drawing. Optionally specify a new path.

Save current drawing to a new path/format (DWG, DXF, or DWT template).

The on-disk format is derived from the file extension so the bytes always match the name (N2) — e.g. 'part.dxf' writes DXF, not DWG. format overrides only when the path has no recognised extension.

Read or change common AutoCAD drawing settings by friendly name.

A convenience facade over the system variables (INSUNITS, LUPREC, LTSCALE, DIMSCALE, DIMTXT, DIMASZ, DIMDEC, DIMDSEP, DIMZIN, TEXTSIZE, OSMODE, …) so the user can say "set units to mm and dimension text to 3.5" without memorising sysvar names. Call with no argument to get a full snapshot of the current settings.

dim_text_height / dim_arrow_size / dim_decimals / decimal_separator / zero_suppression shape the dimension — text_size is TEXTSIZE, the height of a standalone TEXT entity, and does not touch dimensions.

Undo the last drawing operation.

On the live COM backend this is AutoCAD's own undo. The headless backend has no journal, so a step is a full DXF snapshot and history is off by default — set EZDXF_UNDO_DEPTH to the number of steps you want. Measured cost of switching it on: 37x on entity creation (0.18 -> 6.65 ms per call). For a single checkpoint around a risky sequence, transaction_begin / transaction_rollback is far cheaper.

Drawing something after an undo discards the redo branch, as in AutoCAD.

Create a polar (circular) array of copies around a center point.

count is unbounded, so the same result-shaping applies as for the rectangular array: fields=["handle"] when the geometry is already known.

Create a rectangular array of copies. Returns info of all created copies.

rows x cols is unbounded, so this is a result-heavy tool despite being a create: a 40x40 grid hands back 1600 full records. fields=["handle"] is usually all a caller needs from it.

Create multiple entities in a single call for better performance.

Each entity dict must have a 'type' key and the parameters for that type. Example: [{"type": "line", "x1": 0, "y1": 0, "x2": 100, "y2": 0}, {"type": "circle", "cx": 50, "cy": 50, "radius": 25}]

Denser than cad_batch for many entities of the same kind (no per-step tool name), and usable as one step of a cad_batch. Use cad_batch when the calls differ, must be ordered, or must feed each other.

Apply multiple modifications in a single call.

Example: [{"handle": "1A", "action": "move", "dx": 10, "dy": 20}, {"handle": "2B", "action": "delete"}]

Covers move/rotate/scale/delete/set_properties only. For anything else, for ordering, or to feed one step's result into the next, use cad_batch.

Bevel a corner with a chamfer line. Returns info on the new chamfer LINE. V1 supports LINE+LINE only.

AutoCAD's CHSPACE: move entities across spaces, rescaled by the viewport.

Geometry is transformed by the viewport's own matrix so it stays the same size on screen — a move without that transform would leave a 100 mm feature as 100 mm of paper inside a 1:2 viewport.

Refused per entity for dimensions (unless freeze_dimensions), ACIS solids, tables and proxies, viewports, and entities already in the target space; refused outright for a twisted or non-plan viewport. Entities that end up outside the viewport or off the sheet are moved and flagged, not refused.

Copy an entity and move the copy by (dx, dy, dz). Returns info of the new copy.

Create a circular arc. Angles are in degrees, measured counter-clockwise from the positive X axis.

Insert a block reference (instance of an existing block definition).

Create a circle at (cx, cy) with given radius.

Create an ellipse. major_x/major_y define the major axis vector from the center.

Create a hatch fill pattern inside a closed boundary polygon.

Create a line from (x1,y1) to (x2,y2). Returns entity info with handle.

Create a multi-line text entity (MTEXT) with word-wrap at the specified width.

Create a point marker entity at (x, y).

Create a lightweight 2D polyline through the given points.

Example: points=[[0,0],[100,0],[100,100],[0,100]], closed=true → rectangle

Create a closed rectangular polyline between two corner points.

Convenience wrapper around entity_create_polyline.

Draw a revision cloud: a polyline whose every segment carries an arc.

A segment_length longer than the shortest edge is refused — the result would carry no arcs at all and would be a plain polyline reported as a cloud.

Create a NURBS spline curve passing through the specified fit points.

Create a native COM table or an explicitly-labelled ezdxf composite table.

Create a single-line text entity (DTEXT/TEXT).

Create a WIPEOUT that hides drawing content behind its outline.

Refuses fewer than three points: a zero-area mask hides nothing while reporting success.

Permanently delete an entity by its handle.

Delete multiple entities in one call. Returns count of deleted entities.

Edit the defining geometry of an existing entity in place (no delete/recreate).

CIRCLE: cx/cy/radius · LINE: x1/y1/x2/y2 · ARC: cx/cy/radius/start_angle/end_angle. Any argument left out is unchanged; the handle is preserved.

Edit an existing text label in place — change its content, height, or rotation.

Use this to rename/relabel without deleting and recreating (which would lose the handle). Works on both TEXT and MTEXT.

Extend target to meet boundary. If end_x/end_y is None, the target endpoint nearest the boundary is auto-selected.

V1 supports LINE+LINE only. Raises if the lines are parallel.

Round a corner with a tangent arc. Returns info on the new ARC entity (or the first source line for radius=0). V1 supports LINE+LINE only.

Get all properties of a specific entity by its handle.

List entities in the drawing with optional type and layer filters.

Returns handle, type, layer, color, and type-specific properties. Use handles with entity_get, entity_move, entity_delete, etc.

This is the most expensive result on the server — the full record runs ~250 characters per entity, and properties.bounding_box alone is about a third of it. When all you need is handles, say so::

entity_list(layer_filter="GEOMETRY", fields=["handle", "type"], compact=True)

Paging honesty: a plain list has nowhere to say that more entities followed the page, so compact=True is the only mode that reports total, truncated and next_offset — all measured against the same filters.

Mirror an entity across a line defined by two points. Returns the mirrored copy.

Move an entity by the specified displacement vector (dx, dy, dz).

Create a parallel copy of a line, circle, or polyline at the given distance.

Rotate an entity around a base point by the specified angle.

Scale an entity uniformly from a base point.

Select entities by semantic predicate instead of memorising handles.

Uncapped. The usual next step is dimension_auto(handles), so fields=["handle"] is normally all this needs to return.

Change one or more properties of an entity (layer, color, linetype, lineweight, visibility).

Trim target against cutter, keeping the segment containing (keep_x, keep_y).

V1 supports LINE+LINE only. Cutter is treated as an infinite ray (AutoCAD's default 'implied extend' trim mode). Raises if the lines are parallel.

Draw an ISO 1101 feature control frame from LINE + TEXT primitives.

Renders identically on COM and ezdxf. Referenced datums are recorded so the gdt critique focus flags any datum with no matching datum feature.

Deterministic helical gear front view: full involute outline (40 pts/flank), pitch/base/outer/root circles, helix symbol, optional bore + keyway.

Returns a handle bundle plus 'metadata' for downstream gear_draw_section_aa.

Deterministic side cross-section of a gear created by gear_draw_*_front_view. Includes top/bottom/left/right boundaries, bore lines, keyway notch, ANSI31 hatch.

Deterministic spur gear front view (no helix symbol).

Build a structured Grasshopper computational pipeline connecting AutoCAD geometry to parametric algorithms.

Query the 87+ AutoCAD Grasshopper battery components from Rhino.Inside.AutoCAD.

Set a Grasshopper parameter slider and re-solve with live AutoCAD TrackedBake update.

Drive AutoCAD dynamic block properties via Grasshopper parameter definitions.

Register and track baked AutoCAD entity handles for idempotent Grasshopper updates.

Add one boundary path built from typed edges.

Typed edges exist because a boundary that only accepts vertex lists silently straightens every curve it is given. Every edge is validated before any is written, so a malformed list refuses instead of leaving a half-built path.

Edit an existing hatch in place.

Omitted parameters are left alone — a partial edit that resets the rest is data loss. changed reports which attributes actually moved, so re-setting a value to what it already was comes back as an empty list rather than a false positive.

Fill a hatch with a gradient instead of a pattern.

Bore + DIN 6885 keyway in front view. Auto-sizes keyway from bore if width/depth omitted.

Side cross-section view of a keyed bore.

Create a new layer with specified properties.

Delete a layer. The layer must have no entities. Layer '0' cannot be deleted.

Freeze a layer (makes it invisible and unselectable, faster regeneration).

Turn off a layer (entities invisible but still processed in regeneration).

Hide all layers except the specified one (layer isolation).

List all layers with their properties (color, linetype, frozen, locked, visibility).

Never truncated — a drawing's whole layer table is returned — so a compact envelope here always reports truncated=false.

Lock a layer (entities visible but cannot be selected or modified).

Modify an existing layer's color, linetype, and/or lineweight.

Set the active/current layer for new entities.

Turn on a layer that was previously turned off.

Thaw a frozen layer, making it visible and selectable again.

Unlock a layer to allow entity selection and modification.

Copy a paper-space layout: page setup, plot settings and all geometry.

skipped names any DXF types that could not be cloned — check it rather than trusting ok alone. Associative hatch boundaries are re-pointed at the cloned entities; associativity_dropped counts those that referenced something outside the source layout and had to be cleared.

Create a new paper-space layout tab.

Delete a paper-space layout and every entity on it.

Refuses model space, a blank name, and the last remaining sheet. If the deleted tab was the current one, the returned current is where geometry goes next — and handles from the deleted sheet stop resolving.

List all layout tabs (Model + paper-space layouts) and the current one.

Rename a paper-space layout. Entity handles are unaffected.

Activate a layout tab.

Create a native COM MLeader or an explicitly-labelled ezdxf composite.

Return the names of all linetypes currently loaded in the active drawing.

Load a single linetype safely.

Use this instead of system_run_command('_-LINETYPE _LOAD ...') — that raw form can deadlock on the FILEDIA file-picker dialog and on the -LINETYPE option-menu prompt. This tool sets FILEDIA=0 around the call, picks the right .lin file from MEASUREMENT, and verifies the linetype actually loaded.

Execute arbitrary AutoLISP code directly inside AutoCAD 2024+.

Load and execute an external .lsp AutoLISP macro file.

Insert an ISA 5.1 instrument bubble (e.g. TT-101, PT-204, FIC-301).

Insert an ISA 5.1 process pump (centrifugal, diaphragm, metering).

Insert an ISA 5.1 process tank or vessel.

Insert an ISA 5.1 process valve (gate, globe, check, ball, butterfly).

List available ISA 5.1 & CTO P&ID categories and symbols.

Route a P&ID process line with flow arrow and pipe specification tag.

Compute a deterministic snap point on an entity. Use this INSTEAD OF guessing coordinates — eliminates the most common LLM drawing error.

Compute the intersection of two geometry entities (LINE-LINE, LINE-CIRCLE, CIRCLE-CIRCLE). When two candidates exist, ref_x/ref_y selects the nearest. Returns {x, y}.

Compute the tangent point on a circle from an external point. Returns {x, y}. Raises if the from-point is inside the circle.

AutoCAD's QSELECT: filter the drawing by properties.

Named parameters rather than a query string, deliberately — a mistyped attribute name in a query language comes back as an empty result, which is indistinguishable from "no matches". filtered_by reports which filters actually ran.

Read the entities the user pre-selected in the AutoCAD viewport (COM backend only).

Returns the implied "pickfirst" selection — the entities highlighted with grips before invoking the AI — so work can be scoped to exactly those entities instead of the whole drawing. Typical use::

sel = selection_get()
dimension_auto(sel["handles"], style="chain")

Result keys: ok — True on the COM backend (even for an empty selection) count — number of selected entities handles — list of entity handles (hex strings) to act on entities — full per-entity info (type, layer, color, ...) pickfirst — state of the PICKFIRST sysvar (None if unknown) message — guidance when nothing is selected

On the ezdxf headless backend there is no viewport, so this returns ok=False with an empty handles list.

fields / compact shape the "entities" collection — this tool already returns an object, so the columnar envelope lands under that key rather than replacing the result. handles is unaffected, so a caller that only wants handles can pass fields=["handle"] and still read handles directly.

Window or crossing selection against a polygon rather than a rectangle.

AutoCAD's ssget window/crossing selection.

Corners may be given in any order. Selection is by drawn position, so an entity in a mirrored frame is found where entity_get reports it. A zero-area box is refused rather than answered with an empty list.

Get detailed information about AutoCAD MCP Pro capabilities and available tools.

Return machine-readable support modes for the active backend.

Get an AutoCAD system variable value.

Execute an AutoCAD command string directly (COM backend only).

Append \n for Enter. Example: '_LINE 0,0 100,0 \n'.

IMPORTANT: commands that finish at an option menu (e.g. -LINETYPE, -LAYER, -STYLE return to '[?/Create/Load/Set]:' after their action) need an EXTRA blank line or 'X\n' to exit, otherwise AutoCAD stays at a prompt and the next COM call will deadlock. Example: '-LINETYPE _LOAD CENTER acad.lin\n\n'.

A verb denylist refuses obviously destructive commands, but it is a guardrail against issuing ERASE ALL by accident, NOT a security boundary — AutoCAD accepts hundreds of commands and any loaded ARX/LISP adds more. Prefer the typed tools (entity_delete, drawing_save_as, block_insert, drawing_purge): they validate their arguments, which a free-text command string cannot.

Execute an AutoLISP expression (COM backend only).

Example: '(setvar "DIMSCALE" 1.0)'

A symbol denylist refuses the known code-execution and file-I/O channels; text inside double quotes is treated as data, so drawing notes are not mistaken for code. It is a guardrail, NOT a security boundary — AutoLISP has more write channels than any denylist enumerates. Prefer the typed tools.

Set an AutoCAD system variable (e.g. DIMSCALE, LTSCALE, MEASUREMENT).

Get full status of the AutoCAD MCP Pro server and backend connection.

Returns backend name, connection status, capabilities, document info.

Apply a standard layer set from a predefined template.

Available templates: architectural, mechanical, electrical, piping. Creates all layers defined in the template with standard colors and lineweights.

List all available layer templates and their contents.

Replace text in TEXT, MTEXT and block attributes (ATTRIB and ATTDEF).

searched_types is on the response because "no matches" and "that type was never searched" are different answers. Block definitions are included, so the next insert does not reintroduce the old text. DIMENSION text is out of scope: its text field holds the <> override placeholder rather than the measurement, so editing it would break the association.

Mask what is behind an MTEXT so it stays readable over hatch or geometry.

MTEXT only: TEXT has no background-fill attribute, so setting one on it would report success and change nothing.

ISO 7200 / A3 (420x297 mm) title block. Title text is used verbatim.

Pass layout to put the sheet on a paper-space layout, which is where a title block belongs — the border frames the printed sheet, not the model. Your current space is restored afterwards, so asking for a border does not move you onto the sheet.

Begin a transaction (undo mark).

COM backend: Sets AutoCAD undo mark. All subsequent operations can be rolled back to this point with transaction_rollback.

ezdxf backend: Saves a DXF snapshot. Rollback restores the full document state to this point.

Always pair with transaction_commit or transaction_rollback.

Commit the current transaction.

COM: Ends the undo mark (changes are permanent but still undoable via drawing_undo). ezdxf: Discards the rollback snapshot (changes are kept).

Rollback the current transaction to the point of transaction_begin.

COM: Undoes all operations back to the last undo mark. ezdxf: Restores the document from the saved DXF snapshot.

WARNING: This is destructive – all changes since transaction_begin are lost.

Run quality checks on the current drawing.

Available checks:

• empty_layers: Find layers with no entities

• zero_length: Find zero-length lines

• duplicate_entities: Find entities at the same position

Place a scaled model-space viewport on a paper-space layout.

The viewport window shows the model region centered at (view_center_x, view_center_y); view height = height / scale.

Delete a viewport.

The layout's main viewport needs force=true; deleting it removes the tab's own view state, and the layout's current-viewport pointer is repaired so the file does not carry a dangling reference that only CAD would notice.

List paper-space viewports: handle, geometry, scale and lock state.

The layout's own main viewport is included with is_main: true — it is the tab's pan/zoom state rather than a drafting viewport, and it is what remains after every drafting viewport is deleted. scale and locked are null on documents that cannot store them (R12) rather than fabricated.

Lock or unlock a viewport's display scale.

Rescale a viewport by adjusting its view height.

Geometric scale only: annotative text and dimensions do not resize with it. Refuses the layout's main viewport, whose view height is the tab's own pan/zoom state rather than a drafting scale.

Capture a screenshot of the current drawing view.

COM backend: captures live AutoCAD window at current view. ezdxf backend: renders via matplotlib to PNG.

With overlay_handles, each entity is labelled with its handle at its own centre — every modify tool takes a handle, and without the labels there is nothing connecting "the circle at the top-left" to a hex string you can act on. Crowded drawings are capped and the image says how many of how many were labelled. Live AutoCAD captures its own window, so there is no render to label there; it refuses with capability: "handle_overlay".

Returns an Image content block with the PNG data.

Zoom to extents (or window if coordinates given), then capture a screenshot.

The most useful tool for visually inspecting drawing state.

Zoom to show all entities in the drawing (fit drawing in viewport).

Zoom to display the specified rectangular window region.