From 15ba00ee62a62d23c7da148f5db7b517e6fa0cd5 Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauld.mccarthy@gmail.com>
Date: Fri, 18 Mar 2016 15:40:03 +0000
Subject: [PATCH] Edit documentation
---
fsleyes_doc/editing_images.rst | 163 ++++++++++++++++--
.../images/editing_images_2D_button.png | Bin 0 -> 578 bytes
.../editing_images_bucket_fill_button.png | Bin 0 -> 563 bytes
.../editing_images_create_mask_button.png | Bin 0 -> 651 bytes
.../editing_images_create_roi_button.png | Bin 0 -> 679 bytes
.../images/editing_images_erase_button.png | Bin 0 -> 660 bytes
.../editing_images_local_search_button.png | Bin 0 -> 515 bytes
.../editing_images_select_by_value_button.png | Bin 0 -> 657 bytes
.../editing_images_select_radius_button.png | Bin 0 -> 636 bytes
fsleyes_doc/quick_start.rst | 56 +-----
10 files changed, 154 insertions(+), 65 deletions(-)
create mode 100644 fsleyes_doc/images/editing_images_2D_button.png
create mode 100644 fsleyes_doc/images/editing_images_bucket_fill_button.png
create mode 100644 fsleyes_doc/images/editing_images_create_mask_button.png
create mode 100644 fsleyes_doc/images/editing_images_create_roi_button.png
create mode 100644 fsleyes_doc/images/editing_images_erase_button.png
create mode 100644 fsleyes_doc/images/editing_images_local_search_button.png
create mode 100644 fsleyes_doc/images/editing_images_select_by_value_button.png
create mode 100644 fsleyes_doc/images/editing_images_select_radius_button.png
diff --git a/fsleyes_doc/editing_images.rst b/fsleyes_doc/editing_images.rst
index a6cf5c36b..a63669dc8 100644
--- a/fsleyes_doc/editing_images.rst
+++ b/fsleyes_doc/editing_images.rst
@@ -1,39 +1,172 @@
+.. |command_key| unicode:: U+2318
+.. |shift_key| unicode:: U+21E7
+.. |control_key| unicode:: U+2303
+.. |alt_key| unicode:: U+2325
+.. |right_arrow| unicode:: U+21D2
+
+
.. _editing-images:
-Editing images
-==============
+Editing NIFTI images
+====================
+
+
+The ortho view has an *edit mode* which allows you to edit the values of NIFTI
+overlays.
.. _editing-images-edit-toolbar:
+Create a copy!
+--------------
+
+
+If you are worried about destroying your data, you may wish to create a copy
+of your image, and edit that copy - you can do this via the *File*
+|right_arrow| *Copy overlay* menu option.
+
+
The edit toolbar
-^^^^^^^^^^^^^^^^
+----------------
+
+
+.. TODO:: Image of edit toolbar goes here.
+
+
+Open the edit toolbar (via the *Settings* |right_arrow| *Ortho view*
+|right_arrow| *Edit toolbar* menu option), and click on the pencil button to
+enter edit mode.
+
+Modifying the data in an image is a two-stage process:
+
+ 1. Select the voxels you wish to change.
+
+ 2. Change the value of the selected voxels.
+
+
+Selecting voxels
+----------------
+
+
+Voxels can be selected by right-clicking and dragging, or by holding down the
+|command_key|/|control_key| and |shift_key| keys and left-clicking and
+dragging.
+
+Voxels can be de-selected by holding down the |command_key|/|control_key| and
+|shift_key| keys, and right-clicking and dragging.
+
+The selection size can be adjusted via the Selection size field in the edit
+toolbar, or by holding down the |command_key|/|control_key| and |shift_key|
+keys and spinning the mouse wheel.
+
+By default, the selection block is a 2-dimensional rectangle in the current
+slice, but it can be made into a 3-dimensional cube by toggling the 2D/3D
+button on the edit toolbar.
+
+
+Select-by-value
+---------------
+
+
+.. image:: images/editing_images_select_by_value_button.png
+ :align: left
+
+As an alternate to manually drawing the selection, voxels can be selected by
+value. Select-by-value mode is enabled via the select-by-value button on the
+edit toolbar.
+
+
+In select-by-value mode, clicking on a voxel (the *seed*) will result in all
+voxels that have a value similar to that voxel being selected. The threshold
+by which voxels are considered to be similar can be changed via the edit
+toolbar, or by spinning the mouse wheel.
+
+
+When in select-by-value mode, the search region can be restricted in the
+following ways:
+
+
+.. image:: images/editing_images_2D_button.png
+ :align: left
+
+The region can be limited to the current slice, or the entire volume, via the
+2D/3D buttons.
+
+
+.. image:: images/editing_images_select_radius_button.png
+ :align: left
+
+The region be limited to a radius by pushing the radius button. The radius
+can be changed on the edit toolbar, or by holding down the |alt_key| and
+|shift_key| keys, and spinning the mouse wheel.
+
+
+.. image:: images/editing_images_local_search_button.png
+ :align: left
+
+The search can be restricted to adjacent voxels by pushing the local search
+button. When local search is enabled, voxels which are not adjacent to an
+already-selected voxel are excluded from the search.
+
+
+Changing voxel values
+---------------------
+
+
+Once you are happy with your selection you can change the value of the
+selected voxels in one of the following ways:
+
+.. image:: images/editing_images_bucket_fill_button.png
+ :align: left
+
+The values of all selected voxels can be replaced with the current fill value,
+by clicking the bucket-fill button:
+
+
+.. image:: images/editing_images_erase_button.png
+ :align: left
+
+The values of all selected voxels can be erased (replaced with 0) by clicking
+the erase button:
+
+
+The current fill value can be modified via the Fill value field on the edit
+toolbar.
+
+Creating masks/ROIs
+-------------------
-.. _editing-images-fill-value:
+Once you have made a selection, you can copy that selection into a new overlay,
+with the *Create mask* and *Create ROI* buttons. Both buttons will create a new
+image which has the same dimensions as the image being edited.
-Filling the selection
-^^^^^^^^^^^^^^^^^^^^^
-.. _editing-images-erasing:
+.. image:: images/editing_images_create_roi_button.png
+ :align: left
-Erasing the selection
-^^^^^^^^^^^^^^^^^^^^^
+The *Create ROI* button will create a new image, and will copy the values of
+all selected voxels over from the image being edited. All other voxels in the
+new image will be set to 0.
-.. _editing-images-selectionIs3D:
+.. image:: images/editing_images_create_mask_button.png
+ :align: left
-3D selections
-^^^^^^^^^^^^^
+The *Create Mask* button will create a new image, and will set the value of
+all selected voxels to 1, and the value of all other voxels to 0.
+
-.. _editing-images-select-by-intensity:
+Saving your changes
+-------------------
-Select by value
-^^^^^^^^^^^^^^^
+When you have made changes to an image, or created a mask/ROI image, don't
+forget to save them via the *File* |right_arrow| *Save overlay* menu item, or
+the floppy disk button on the :ref:`controls-overlay-list`.
diff --git a/fsleyes_doc/images/editing_images_2D_button.png b/fsleyes_doc/images/editing_images_2D_button.png
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diff --git a/fsleyes_doc/quick_start.rst b/fsleyes_doc/quick_start.rst
index e43d3d02d..6573b7b7e 100644
--- a/fsleyes_doc/quick_start.rst
+++ b/fsleyes_doc/quick_start.rst
@@ -30,8 +30,9 @@ looks like this:
:align: center
-This is slightly boring, so let's load an image. Select the *File/Add overlay
-from file* menu option, and choose a `.nii.gz` image to load.
+This is slightly boring, so let's load an image. Select the *File
+|right_arrow| Add overlay from file* menu option, and choose a `.nii.gz` image
+to load.
Now things are a bit more interesting:
@@ -242,54 +243,9 @@ Edit a NIFTI1 image?
You can :ref:`edit NIFTI1 image data <editing-images>` from within an ortho
view. Open the :ref:`edit toolbar <editing-images-edit-toolbar>` (via the
-*Settings* |right_arrow| *<view name>* |right_arrow| *Edit toolbar* menu
-option), and click on the pencil button to enter edit mode.
-
-Modifying the data in an image is a two-stage process:
-
- 1. Select the voxels you wish to change.
- 2. Change the value of the selected voxels.
-
-
-**Selecting voxels**
-
- - Voxels can be selected by right-clicking and dragging, or by holding down
- the |command_key|/|control_key| and |shift_key| keys and left-clicking and
- dragging.
-
- - Voxels can be deselected by holding down the |command_key|/|control_key|
- and |shift_key| keys, and right-clicking and dragging.
-
- - The selection size can be adjusted via the *Selection size* field in the
- edit toolbar, or by holding down the |command_key|/|control_key| and
- |shift_key| keys and spinning the mouse wheel.
-
- - By default, the selection block is a 2-dimensional rectangle in the
- current slice, but it can be made into a 3-dimensional cube by toggling
- the :ref:`2D/3D button <editing-images-selectionIs3D>` on the
- edit toolbar.
-
- - As an alternate to manually drawing the selection, voxels can be
- :ref:`selected by value <editing-images-select-by-intensity>`.
-
-
-**Changing voxel values**
-
- - The values of all selected voxels can be replaced with the current
- :ref:`fill value <editing-images-fill-value>`, by clicking the
- bucket-fill button on the edit toolbar.
-
- - The values of all selected voxels can be *erased* (replaced with 0) by
- clicking the :ref:`erase button <editing-images-erasing>` on the edit
- toolbar.
-
- - The current fill value can be modified via the *Fill value* field
- on the edit toolbar.
-
-
-When you have made changes to an image, don't forget to save them via the
-*File* |right_arrow| *Save overlay* menu item, or the floppy disk button on
-the :ref:`controls-overlay-list`.
+*Settings* |right_arrow| *Ortho view* |right_arrow| *Edit toolbar* menu
+option), and click on the pencil button to enter edit mode. See the page on
+:ref:`editing images <editing-images>` for more details.
Classify ICA components?
--
GitLab