| | 74 | == TV-Image == |
| | 75 | |
| | 76 | * Mouse |
| | 77 | * Double-click: re-centering the ellipse |
| | 78 | * Left-Click: choosing the vertices of a Region Of Interest (ROI) |
| | 79 | * Right-Click: |
| | 80 | a. enclosing a region of interest, when choosing a Region Of Interest (ROI) |
| | 81 | b. repeating the highly demanding actions, which are |
| | 82 | 1. 'c' adding/editing centeroid |
| | 83 | 2. 'd' deleting centeroids |
| | 84 | 3. 'r' adding regions (masks) |
| | 85 | 4. '!' removing regions (masks) |
| | 86 | 5. 'b' adding background regions |
| | 87 | * Keyboard: |
| | 88 | * Note: Short keys may be the same, but having different actions, based on process you are in |
| | 89 | |
| | 90 | * Line-Styles and Colors: |
| | 91 | * dotted red ellipse: Photometry Aperture |
| | 92 | * dotted sky blue ellipses: Photometry Annulus (used to estimate the background level/statistics) |
| | 93 | * dotted yellow ellipses: The annulus that is not used for background estimations (when background regions are in use) |
| | 94 | * orange circles: Already Masked point sources |
| | 95 | * green circles: new selected point sources |
| | 96 | * Thick dashed sky blue open regions: These are the optional regions to measure the background value. When they are defined, the elliptical annulus turns into yellow. |
| | 97 | * dash-dotted peach-color open region: If defined '(menu > SExtractor > Use-Mask)', SExtractor only uses this area for measurements. It is useful when half of the image is missing and only the area around the galaxy is useful. |
| | 98 | * dash-dotted green open region: If defined '(menu > SExtractor > Force-Mask)', SExtractor does not filter this area for measurements. It is useful for instance when a masked spike divides a galaxy into two halves. We do not want SExtractor fits a separate ellipse for each half. |
| | 99 | |
| | 100 | |
| | 101 | * Notes: |
| | 102 | * Background estimation regions are always blue |
| | 103 | * Ellipse aperture/annulus are displayed with dotted lines |
| | 104 | * SExtractor related regions are displayed with dash-dotted |
| | 105 | * Background related regions are displayed with dashed lines |
| | 106 | |
