Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
map_viewer [2012/05/22 00:40] romulo |
map_viewer [2013/02/01 16:52] admin [How To / Tutorials] |
||
---|---|---|---|
Line 1: | Line 1: | ||
====== Map Viewer ====== | ====== Map Viewer ====== | ||
- | The map viewer is the tool designed to view and interpret map information.\\ | + | The map viewer is the tool designed to view and interpret map information. |
- | * [[Load a map|[Tutorial] Load a map.]] | + | |
- | * [[Make a movie|[Tutorial] Make a movie.]] | + | |
- | * [[Color Palette|Color Palette]] | + | |
- | * [[Histogram|Histogram]] | + | |
- | ===== Main Window ===== | + | ===== Main Components ===== |
- | The main window is where the most important information regarding the viewer | + | |
- | state is located. On the left you have the toolbar related to the **viewer** | + | |
- | state as a whole, on the right you have a list of loaded maps and tools to | + | |
- | manage them.\\ | + | |
- | {{ :main_window.png?nolink& | }}\\ | + | * [[Map Viewer Interface|Map Viewer Interface]] |
- | \\ | + | |
- | ===== Toolbar ===== | + | * [[Color Palette|Color Palette]] |
- | \\ | + | * [[Histogram|Histogram]] |
- | {{:toolbar_num.png?nolink& |}} | + | |
- | + | ||
- | Each toolbar button is described below: | + | |
- | 1) Load map erasing the current stack, load maps using the current stack, replace maps and load saved viewer state.\\ | + | |
- | 2) Save viewer state (save transformations, map stack, background color and movie maker settings.\\ | + | |
- | 3) Save current visualization (including legend if visible) as a bitmap image).\\ | + | |
- | 4) Reload current selected map.\\ | + | |
- | 5) Open movie maker (allow users to make *.mp4 movies from a series of maps in a easy way).\\ | + | |
- | 6) Create map groups (grouping maps allow users to apply calculate expressions on top of a custom stack).\\ | + | |
- | 7) Toggle map legend (and if image is currently in category mod, toggle categories visualization).\\ | + | |
- | 8) Zoom map extents to view window (render the map using the entire screen space available).\\ | + | |
- | 9) Zoom in (zoom in over hovered cell).\\ | + | |
- | 10) Zoom out (zoom out over hovered cell).\\ | + | |
- | 11) Zoom to selection rectangle (selected rectangle will cover entire screen space available).\\ | + | |
- | 12) Pan (allow users to movement the current visualization area).\\ | + | |
- | 13) Previous view (if user is making many visualization steps, you can go back to last step using this button).\\ | + | |
- | 14) Background color (change application background color).\\ | + | |
- | 15) Quit.\\ | + | |
- | \\ | + | |
- | \\ | + | |
- | + | ||
- | ===== Palette ===== | + | |
- | + | ||
- | Allow users to select which color represents each cell in visualization area.\\ | + | |
- | Cells are first extracted from the map in their original values (in any range) and then re-sampled using the histogram curve.\\ | + | |
- | After that, their values fall in the [0, 255] range, which are mapped to palette colors.\\ | + | |
- | + | ||
- | {{ :palette.png?nolink& |}} | + | |
- | + | ||
- | \\ | + | |
- | \\ | + | |
- | + | ||
- | ==== Changing colors individually ==== | + | |
- | {{:palette_color.png?nolink&|}} | + | |
- | Each color can be changed individually, by clicking on its square. You can also check color index value by hovering | + | |
- | your cursor over the color square. {{:palette_color_hover.png?nolink&|}}\\ | + | |
- | \\ | + | |
- | \\ | + | |
- | + | ||
- | ==== Generated palette ==== | + | |
- | You can also create a palette using a linear interpolation between two color values (gradient). All you have to do | + | |
- | is click the gradient button and set your range.\\ | + | |
- | {{:palette_gradient.png?nolink&|}}\\ | + | |
- | After that, you can click the interpolate button and the new palette view be generated. | + | * [[viewer_image_expression|Calculate Expression]] |
- | \\ | + | |
- | \\ | + | |
- | ==== Saving your work ==== | + | * [[viewer_map_group|Map group]] |
- | Keep in mind that palettes are not saved until the user chooses to do so. If you made any mistake, you can just | + | ===== How To / Tutorials ===== |
- | hit "cancel" and try again. If you hit Ok, the palette will be changed locally, but will reset if you restart | + | |
- | the application. Saved palettes are stored on the disk, so every time you reopen the map viewer, you will still | + | |
- | have them. | + | |
- | ===== Histogram ===== | + | * [[Load a map|Load a map / Workflow]] |
- | The histogram window is responsible for assigning transformations from image original values (in any range) to | + | * [[Make a movie|Make a movie]] |
- | palette range [0, 255]. The histogram curve will adjust any value smaller than the "From:" limit to 0, and any | + | |
- | value greater than the "To:" limit to 255. Any other values will be mapped using the histogram curve to the "Y" | + | |
- | coordinate on the color palette on the left. | + | |
- | {{ :histogram.png?nolink& |}} | + | * [[Set map alias|Setup maps aliases]] |
- | ==== Transformations ==== | + | * [[Map viewer command line|Using command line to save images]] |
- | * The default transformation doesn't map any values, leaving cell values "as is". | + | |
- | * Linear transformation will map linearly any values between the "from" and "to" ranges. | + | |
- | * Equalize will construct a curve based on [[http://en.wikipedia.org/wiki/Equalization|Equalization]] | + |