MediaWiki API result

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Specify the format parameter to change the output format. To see the non-HTML representation of the JSON format, set format=json.

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    "warnings": {
        "main": {
            "*": "Subscribe to the mediawiki-api-announce mailing list at <https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce> for notice of API deprecations and breaking changes."
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            "*": "Because \"rvslots\" was not specified, a legacy format has been used for the output. This format is deprecated, and in the future the new format will always be used."
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            "48": {
                "pageid": 48,
                "ns": 0,
                "title": "Select Conditions",
                "revisions": [
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                        "*": "= Overview =\n\n<gallery mode=\"packed\" heights=600px caption=\"Figure 8: Select Conditions screen module screenshots\">\nImage:searchtype.jpg | (using bright theme)\nImage:basicsearch1.jpg | (primary search filters)\nImage:basicsearch2.jpg | (objects catalogs selector)\nImage:advsearch1.jpg | (SQL like search input)\nImage:advsearch2.jpg | (night mode input keyboard)\nImage:timerange.jpg | (time selector module)\n</gallery>\n\nSelect Conditions module helps to set the objects filtering criteria for [[Object Selection module|objects selection]] (Figure <span id=fig:select_search_type_screen>8</span>). DSO Planner provides two independent ways to select objects during observations planning phase: '''Primary''' and '''SQL-like'''. The Primary tool provides a special menu screen to select and setup a number of parameters for objects positive filtering, whereas the SQL-like method uses math logic based expressions to define most complex objects selection criteria.\n\nThe fact is that various internal catalogs of DSO Planner may contain same objects but with different names. To make sure that search results does not contain the same object several times - you need to turn the [[Select Conditions#exclude_dups|Exclude duplicates]] option On.\n\n= Select object catalogs =\n\nThe \"Select object catalogs\" option opens the [[Overview#Internal_databases|list of internal object databases]] and custom user catalogs, available on the Android device at the moment, and allows to select those you are interested to search within with a simple check mark.\n\n= Select search type =\n\nSelect either Primary or SQL-like search filter type. Depending on selection the following items of the module will be enabled or disabled for modification (disabled items have grayed out text).\n\n= Primary Search =\n\n* '''Select object types''' &mdash; Used to limit objects by [[Data formats#Object_Types_reference|DSO object type]] (multiple types could be selected).\n* <span id=empty_field>'''Empty field treatment'''</span> &mdash; defines what to do if a particular data, used by the filter, is not available in one of the traversed databases (e.g. star magnitude for Dark Nebulas). There are three options provided:\n** Treat the empty field as zero value;\n** as a \"very large number\";\n** always count it as a positive (or a negative) match.\n* '''Primary search parameters''' section\n** '''Filter type''' &mdash; There are 2 special filters provided to accustom for current atmospheric conditions or user's preference:\n*** '''Visibility Filter''' &mdash; Each object's visual parameters (magnitude and dimensions) are analysed in conjunction with the observing conditions, telescope in use, and geographic location in order to assign it a visibility rating. Objects above or equal to the predefined [[Data formats#Visibility_value_explained|Detection Limit]] will be included into the list of good matches.\n*** '''Maximum magnitude filter''' &mdash; Simple magnitude limiter. Objects below or equal to the specified value will be included.\n*** '''No filter''' &mdash; No filter will be applied.\n** '''Select constellation''' &mdash; Limit the search to the selected constellations only.\n** '''Object name starts with...''' &mdash; Name prefix based search. This option is convenient for catalogs combined from various sources like SAC. For example, by setting \"cr\" here you will limit the search to Collinder Open Clusters in that database. This trick could be used in the custom user databases as well, simplifying their preparation for use with DSO Planner engine.\n** '''Object minimal size''' &mdash; lower limit on the object's dimensions (no less than x).\n** '''Lowest altitude''' &mdash; cut off objects which will never get that high above the horizon throughout the defined observing period of time.\n** '''Detection limit''' &mdash; Set the [[Data formats#Visibility_value_explained|Detection threshold]] for the visibility filter.\n** '''Set maximum magnitude''' &mdash; Set the threshold for maximum magnitude filter.\n** '''Minimum separation''' &mdash; For double stars only, limit the minimum distance between components.\n** '''Maximum separation''' &mdash; For double stars only, limit the maximum distance between components.\n** '''Maximum mag2''' &mdash; For double stars only, limit the maximum magnitude of the second component (faintest to include).\n\n= SQL-like expression module =\n\nThis item opens the special module, containing the list of SQL-like expressions defined and saved by user. Select one of them to instantly use for the search. Initially, the list contains 3 simple expressions as examples. You can add your own by tapping the '''Add new search request''' button at the bottom of the screen.\n\nAny SQL-like expression in DSO Planner is actually represented by two requests, referring to database and to the ephemeris calculating engine:\n\n* '''SQL request''' &mdash; refers to static fields in the target databases.\n* '''Local request''' &mdash; allows to filter by object's Altitude and [[Data formats#Visibility_value_explained|Visibility]].\n\n== SQL request ==\n\nThe following fields could be used in the first expression (case independent).\n\n* '''ID''' &mdash; the index of the object in the database (sequential number).\n* '''TYPE''' &mdash; Object type. Could take the standard [[Data formats#Object_Types_reference|object type]] abbreviation value.\n* '''A''' &mdash; Larger object dimension in minutes.\n* '''B''' &mdash; Smaller object dimension in minutes.\n* '''RA''' &mdash; Right ascension (E2000.0) in decimal hours (11.245621623).\n* '''DEC''' &mdash; Declination (E2000.0) in decimal degrees (-10.2767289).\n* '''MAG''' &mdash; Catalog's star magnitude.\n* '''PA''' &mdash; Position angle (of the DSO shape or binary components).\n* '''CON''' &mdash; Constellation name (standard 3 letters Latin abbreviation of it).\n\nThese are the common DSO database fields. However, any additional numeric fields in the internal or user databases could be used as well (e.g. this is the valid expression for LDN database: OPACITY>3, and this is for WDS or Bright DS database: SEPARATION<5&MAG2<7) - just refer to the database fields definitions used.\n\n=== Examples ===\n\n* '''(a>15) & (con=and)''' &mdash; All objects from Andromeda constellation with larger axis above 15 minutes.\n* '''a>10 & type=gc''' &mdash; All globular clusters larger than 10 minutes.\n* '''a>7*b & a>10 & type=gx''' &mdash; select Edge-On galaxies only.\n* '''id>0''' &mdash; List all objects from the database.\n\n== Local request ==\n\nSo far there are only two fields supported:\n* '''ALT''' &mdash; Minimal altitude (over the defined observing period of time)\n* '''VIS''' &mdash; [[Data formats#Visibility_value_explained|Visibility rating]] from 0 to 5\n\n=== Examples ===\n\n* '''alt>20''' &mdash; Objects that have an altitude above 20 degrees at least once during the observation period.\n* '''vis>1''' &mdash; Objects with [[Data formats#Visibility_value_explained|visibility]] better than 1.\n* '''alt>20 & vis>1''' &mdash; Both above conditions should hold.\n\n== Logical and math operations ==\n\nThe following logical and values comparison operations could be used in expressions:\n* '''x=y''' &mdash; x is equal to y.\n* '''x>y''' &mdash; x is greater than y.\n* '''x<nowiki><</nowiki>y''' &mdash; x is less than y.\n* '''x#y''' &mdash; x is not equal to y.\n* '''x&y''' &mdash; logical AND (e.g. (mag>12)&(type=GC) &mdash; object magnitude is higher than 12 and its type is GC).\n* '''x|y''' &mdash; logical OR (e.g. (type=GC)|(type=OC) &mdash; object is either GC or OC).\n* '''+ - * ''' and '''( )''' &mdash; could be used to calculate and group variables and values within complex expressions.\n\n== Main Menu ==\n\nThe main menu of the module provides standard [[Other Modules#import_export|import/export]] operations for user's expressions list.\n\n== Context Menu ==\n\nLong tap each item on the list of SQL requests to\n* '''Edit''' &mdash; Edit the selected expression.\n* '''Remove''' &mdash; Remove the selected expression from the list.\n\n= Common conditions =\n\nThis part allows to set conditions common to both Primary and SQL-like search.\n\n* '''Exclude duplicates''' &mdash; This is an option to remove physically duplicated objects when searching in intersecting databases with the same/different object name notations. As an example, if you select NGCIC and UGC catalogs and turn this option on, then among galaxies NGC2 and UGC59 (which are the same) only NGC2 will be found. Without this option the application finds both NGC2 and UGC59. This feature also excludes duplicated objects from the same catalog (e.g. NGC6/NGC20, NGC17/NGC34)\n* '''Time of observation''' &mdash; Set observation range. In addition to setting the time range manually, one may easily define the ranges with a reference to astro twilight, sunrise and sunset.\n* '''Telescope/Instrument''' &mdash; Select an [[Equipment Database#Telescopes_List|instrument]] for observations.\n* '''Geographic Location''' &mdash; Select [[Settings module#Geographic_location|observatory location]].\n* '''Sky limiting magnitude''' &mdash; The magnitude of faintest stars at zenith. Used for visibility calculations."
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            "47": {
                "pageid": 47,
                "ns": 0,
                "title": "Settings module",
                "revisions": [
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                        "*": "= Overview =\n\n<gallery mode=\"packed\" heights=600px caption=\"Figure 6: Settings module screenshots\">\nImage:generalsettings1.jpg | (using bright theme)\nImage:generalsettings2.jpg | (using night mode)\n</gallery>\n\nThese are the application main settings (apart from Star Chart settings). This module also provides a direct access to object databases.\n\n= Night Mode =\n\nDedicated item to quickly turn on or off the Night mode at the very top of the module screen.\n\n= 1. General =\n\n== Geographic location ==\n\n<gallery mode=\"packed\" heights=600px caption=\"Figure 7: Geographic location module screenshots\">\nImage:geosettings.jpg | (using bright theme)\nImage:geosettings2.jpg | (major world cities)\n</gallery>\n\nDefines coordinates of the observation location (Figure <span id=fig:geo_screen>7</span>).\n\n* '''Enable AutoLocation''' &mdash; Enable/Disable auto location by GPS, network etc. If you want to use GPS as a location provider turn it on first. The program uses the best provider available at the moment (e.g. GPS if it is turned on, network if GPS is turned off). It queries current location provider once an hour. If no fix is available the last known location for the current provider is used.\n* '''Manual coordinate setting''' &mdash; tap on two lines below '''AutoLocation''' to change location values, disabled if AutoLocation is ON.\n** '''Latitude''' &mdash; Use the following format when setting latitude: ''N34 10 01'' or ''S34 10 01''. N/S stands for North/South latitude. The value is 34 degrees 10 minutes 1 second. Minutes and/or seconds could be omitted. The name of the closest major City is displayed below the value.\n** '''Longitude''' &mdash; Use the following format when setting longitude: ''W118 10 01'' or ''E118 10 01''. W/E stands for Western/Eastern longitude. The value is 118 degrees 10 minutes 1 second. Minutes and/or seconds could be omitted. The name of the closest major City is displayed below the value.\n* '''Add location''' &mdash; Add current location coordinates to your personal locations database (List).\n* '''List''' &mdash; Open your personal locations database and select the location to use. You can [[Other Modules#import_export|Export/Import]] locations from/to the list.\n* '''Major World Cities''' &mdash; Select location from the list of 24,000 major cities of the world.\n\nThe new observation location will be immediately recognized throughout the app by one of the nearest cities from the major world cities database, if the place is less than 20 kilometers (12.4 miles) away from the city or by closest user defined location if less than 5 km (3 mile) away.\n\n== Astro Equipment ==\n\n* '''Telescopes Database''' &mdash; Select the current [[Equipment Database#Telescope_List|instrument]] for observations.\n* '''Eyepieces Database''' &mdash; Select [[Equipment Database#Eyepiece_List|eyepieces]] for observations and/or CCDs for imaging.\n* '''GoToMount Setup''' &mdash; Paired device and telescope type selection (Meade/Celestron). You need to turn on [[Working with telescope#Bluetooth_GoTo|bluetooth]] first.\n\n== Objects Databases ==\n\nWork with the list of integrated and user's sky objects databases. See the dedicated [[Objects Databases]] chapter.\n\n== Star Chart Settings ==\n\nSee the Start Chart Settings dedicated page [[Star Chart module##Star_Chart_Settings | here]].\n\n== Screen Settings ==\n\n* '''Automatic nightmode''' &mdash; When selected the program automatically turns on night mode after civil twilight ends.\n* '''Minimal brightness mode''' &mdash; Wherever possible resets screen brightness to the minimum. Also overrides Star Chart gesture settings on exit.\n* '''Day Time full screen mode''' &mdash; Android notification bar removed in day mode.\n* '''Night Time full screen mode''' &mdash; Android notification bar removed in night mode.\n* '''Main Screen Background Image''' &mdash; Show Sombrero image on initial view.\n* '''Onyx skin''' &mdash; Set white on black color interface throughout the application.\n\n== System-wide settings ==\n\n* '''URLs''' &mdash; Change or update web addresses and data request settings of several external resources maintained by third parties which DSO Planner use to gather and update celestial information.\n** '''Get updated URLs''' &mdash; Attempt to update the below URLs automatically from the DSO Planner website.\n** '''Restore default URLs''' &mdash; reset any updates in case of errors to the set hardcoded in the app.\n** '''Comets update URL''' &mdash; The web site with comets' orbital elements.\n** '''Minor Planets update URL''' &mdash; The website with minor planets' orbital elements.\n** '''DSS download URL''' &mdash; The Digital Sky Survey web site.\n* '''Data files location''' &mdash; Allows moving the 2Gb database of DSO Planner to a different location, e.g. the external SD card. It allows to free up the main storage space of the android device and sometimes increase the database performance using a high-speed microSD card. Experimental for advanced users only, as on some devices it may require additional effort to make it work.\n** '''See main data files''' &mdash; will show the default location of the data files you may want to move from.\n** '''Change data files location''' &mdash; will show the input dialog where you can enter the full path (from the root) to the folder where you plan to store the data files from the above location. Delete the content to restore the original path.\n** '''Check data file availability''' &mdash; will show the list of files with locations which the app knows about and confirm the availability of files in each of them.\n* '''Disable auto sleep in Star Chart mode''' &mdash; Automatic Android power saving mode, turning the screen off, will be disabled for the [[Star Chart module]].\n* '''Disable Night keyboard''' &mdash; If selected android default keyboard is used in the night mode. This may negatively affect night vision.\n* '''Auto-dismiss Warnings''' &mdash; Set a period after which application warning and information messages will be closed.\n* '''Auto update comet elements''' &mdash; The app suggests to update comet database when new orbital elements are available on [www.minorplanetcenter.net]. In the dialog you could press '''Cancel''' &mdash; to postpone update till the next orbital elements become available or '''Hide''' &mdash; to turn the notification off. To turn the notification on just activate this item again.\n* '''Auto update minor planets elements''' &mdash; allow an automatic check for minor planets updated orbital elements; it will prompt you about the update when newer elements are available.\n* ''' Floating Back/Menu buttons in the Night Mode''' &mdash; Enable Android navigation buttons' substitute solution in assistance of the true night mode maintenance on some devices (notably tablets) with virtual navigation buttons shown at the bottom of the screen. You can either disable the latter completely in the Android System Settings or/and tape the bottom portion of the screen with some masking tape to ultimately hide them behind. These substitute control buttons (Back and Menu) will be displayed as a semitransparent overlay at the bottom portion of every screen of the app '''in the Night Mode only'''.\n* ''' Floating Back/Menu buttons in the Day Mode''' &mdash; The same feature but for the day mode.\n\n= 2. Utilities =\n\n== Downloads ==\n\nThis allows to download/redownload application databases (expansion pack and patch). Expansion pack and patch are usually downloaded automatically when application is installed. You need to download them only if there is a warning at the start of application that the expansion pack or patch is missing. Download is permitted via Wi-Fi connection only due to large file size. Start download by long-touching the ''Expansion pack'' title.\n\nBefore installation please make sure that you have at least 2 GB for Pro Edition, 540 MB for Plus Edition and 100 MB for Basic Edition of free space on your internal SD card to download application databases! (Note: due to Google Play rules this data cannot be moved to your external SD card - you must have all this space on your internal SD card!). If you redownload expansion pack or patch (they had been downloaded already) no additional free space is required - the application will automatically remove the old files.\n\n== Reinstall ==\n\nIssue the Reinstall Application Databases command, which might be required after major app updates.\n\n== Backup/Restore ==\n\nBackup and restore of application user databases (object databases, observation lists, instruments, notes, locations, advanced search requests) to ''SD card /DSOPlanner/backup'' folder. This may be needed if you would like to use the same databases on another device. Please note that when restoring the databases all existing user databases will be removed and replaced by the databases from the backup. To be on the safe side, we recommend to backup the most critical information into the text format as well ([[Other Modules#import_export|Import/Export]]).\n\n== Quick Start Guide ==\n\nShow the brief user guide, which was shown after the initial app's installation.\n\n== What's new ==\n\nShow the developers' note on the versions history.\n\n== Rate ==\n\nOpen app's page on Google Play, so you can update or rate it conveniently.\n\n== Localize ==\n\n[http://dsoplanner.com/Mail:dsoplanner@gmail.com Contact developers] if you would like to help translate the app's interface to your own language (the link will open your email client).\n\n== Privacy policy ==\n\nJust mandatory privacy policy we are using explained.\n\n== About ==\n\nShow brief information about application, acknowledgements, and licensing rights."
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