In Microsoft Expression Interactive Designer, path editing is supported through using the Pen and Sub Select tools located on the Tools Palette. 

 

Below are some cursors that can be invoked when editing paths. The following functional descriptions may be useful:

 

 - Convert Cursor 
What it does: Lets user know that pressing alt is tangent editing mode (this
is true in both sub select and pen)
How to get cursor activated:  Ensure point adorners in the path are showing
(activating either the pen tool or subselection tool will make the point
adorners visible). Press the alt key while hovering over the scene

- ConvertPointCursor + click
What it does:  Makes the point into a sharp corner.(shrinks the tangent down
to zero - no tangent for curve to approach)
How to get cursor activated:  Ensure point adorners in the path are showing
(activating either the pen tool or sub selection tool will make the point
adorners visible). Press the alt key while hovering over a point adorner in
the path

- ConvertPointCursor  + click & drag
What it does:  Makes any sharp corners smooth. If already smooth, it
readjusts the tangent direction and size(Changes the angle of the curve as
it passes through the clicked point)
How to get cursor activated:  Ensure point adorners in the path are showing
(activating either the pen tool or sub selection tool will make the point
adorners visible). Press the alt key while hovering over a point adorner in
the path

- ConvertSegmentCursor  + click
What it does:  Turns a curve (any) segment into a straight line.
How to get cursor activated:  Ensure point adorners in the path are showing
(activating either the pen tool or sub selection tool will make the point
adorners visible). Press the alt key while hovering over a segment in the
path

 ConvertSegmentCursor + click & drag
What it does:  Takes any segment and bends it in a curve to pass through the
mouse position. (as you get closer to the endpoints, it gets less true that
it will follow the mouse)
How to get cursor activated:  Ensure point adorners in the path are showing
(activating either the pen tool or sub selection tool will make the point
adorners visible). Press the alt key while hovering over a segment in the
path

 - ConvertTangentCursor + click & drag
What it does:  adjust the selected tangent independently of the other side
How to get cursor activated:  Subselect a  point or a segment. Press the alt
key and hover over a tangent adorner in the path.

- PenTool + alt
What it does:  Click with pen tool and then press alt (hold down) you will
be adjusting the last tangent without the smooth constraint. It allows you
to make a sharp corner. (click, drag then press alt)

- PenTool + shift + alt
What it does:  Aligns the new point, horizontally, vertically, or diagonally
(based on  the closest plane of the clicked point)

- PenAdjustCursor + click
What it does:  Click the selected endpoint to reduce the last tangent to
zero length.
How to get cursor activated:  Ensure pen tool is selected. Hover over a
selected endpoint.

- PenAdjustCursor + click & drag
What it does:  Clicking and dragging will modify the tangent.

- PenCloseCursor + click
What it does:  Click on this point when this cursor is active to close the
path with a sharp corner
How to get cursor activated:  Ensure pen tool is active. Ensure either the
start point or end point of a path is active. Hover over the non active
start point or end point in the path.

- PenCloseCursor  + click & drag
What it does:  Close the path with a smooth point.

 - PenDeleteCursor + click
What it does:  Click on this point when this cursor is active to delete the
clicked point.
How to get cursor activated:  Ensure pen tool is selected Hover over any
adorner point along the path.

- PenExtendCursor
What it does:  Indicates to the user that the mouse is over an endpoint or
start point. Click here to make this path active and start extending it. (
so that user can click to make this point active to edit the tangent or for
future clicks to add a new segment(s)
How to get cursor activated:  Ensure pen tool is selected. Hover over a
start point or endpoint.


- PenTangentCursor
What it does:  Indicates that a tangent is being dragged.
How to get cursor activated:  While the Pen Extender cursor was showing,
User has pressed and is holding the mouse down on an open point.

- PenInsertCursor + click
What it does:  Click at this spot on the segment to insert a new point.
How to get cursor activated:  Ensure pen tool is selected. Hover over any
segment along the path.

- PenJoinCursor + click
What it does:  Click creates a sharp corner when it joins 2 paths or sub paths.
How to get cursor activated:  Need 2 open paths or 1 path that has 2 open
subpaths.

1. Ensure both pathA and pathB are selected.

2. Activate the pen tool.

3. Hover over an openpoint of one of the paths (PathA) and notice the PenExtenderCursor appears. Click the point.

4. Hover over an openpoint on the opposite path (PathB) and now the PenJoinCursor appears. Click the point and the 2 paths will join sharply.


- PenJoinCursor + click & drag
What it does:  Click & drag makes a smooth corner when it joins 2 paths.
How to get cursor activated:  Need 2 open paths or 1 path that has 2 open
subpaths.

1. Ensure both pathA and pathB are selected.

2. Activate the pen tool.

3. Hover over an openpoint of one of the paths (PathA) and notice the PenExtenderCursor appears. Click the point.

4. Hover over an openpoint on the opposite path (PathB) and now the PenJoinCursor appears. Click the point and drag before letting go of the mouse click. The 2 paths will join smoothly.


- PenStartCursor + click
What it does:  Click here to start creation of a new path.
How to get cursor activated:  Ensure pen tool is selected. Hover over an
area of the scene where a new path start is desired.

- PenStartCursor + click & drag
What it does:  Click & drag makes a tangent to start a curve