Constants

The following items are found in params.py, which defines default constantsfor the ‘veroviz’ package. If you desire, you may modify these values (although this is not recommended).

Constants

Distance conversions

>>> VRV_CONST_METERS_PER_KILOMETER = 1000.0
>>> VRV_CONST_METERS_PER_MILE = 1609.34
>>> VRV_CONST_METERS_PER_YARD = 0.9144
>>> VRV_CONST_METERS_PER_FEET = 0.3048
>>> VRV_CONST_METERS_PER_NAUTICAL_MILE = 1852.0

Speed conversions

>>> VRV_CONST_MPS_TO_KPH = 3.6
>>> VRV_CONST_MPS_TO_MPH = 2.23694

Time conversions

>>> VRV_CONST_SECONDS_PER_HOUR = 3600.0
>>> VRV_CONST_SECONDS_PER_MINUTE = 60.0

Area conversions

>>> VRV_CONST_SQKM_PER_SQMETER = 1e-6
>>> VRV_CONST_SQMILES_PER_SQMETER = 3.861e-7
>>> VRV_CONST_SQFT_PER_SQMETER = 10.7639

Global Settings and Defaults

The following are keys for global variable config locates in params.py, which defines default values and settings for the ‘veroviz’ package. If you desire, you may modify these values by setGlobal(newConfig).

Default Leaflet Styles

Defaults for adding Leaflet objects (e.g., circles, polygons, text)

>>> config['VRV_DEFAULT_LEAFLET_OBJECT_COLOR_LINE'] = 'red'
>>> config['VRV_DEFAULT_LEAFLET_OBJECT_COLOR_FILL'] = 'red'
>>> config['VRV_DEFAULT_LEAFLET_FONTSIZE'] = 24     # pt
>>> config['VRV_DEFAULT_LEAFLET_FONTCOLOR'] = 'orange'
>>> config['VRV_DEFAULT_LEAFLET_MAPTILES'] = 'CartoDB positron'

For the nodes/icons

>>> config['VRV_DEFAULT_LEAFLETICONPREFIX'] = 'glyphicon'
>>> config['VRV_DEFAULT_LEAFLETICONTYPE'] = 'info-sign'
>>> config['VRV_DEFAULT_LEAFLETICONCOLOR'] = 'blue'

For the arcs

>>> config['VRV_DEFAULT_LEAFLETARCWEIGHT'] = 3
>>> config['VRV_DEFAULT_LEAFLETARCSTYLE'] = 'solid'
>>> config['VRV_DEFAULT_LEAFLETARCOPACITY'] = 0.8
>>> config['VRV_DEFAULT_LEAFLETARCCOLOR'] = 'orange'

For the boundings

>>> config['VRV_DEFAULT_LEAFLETBOUNDINGWEIGHT'] = 3
>>> config['VRV_DEFAULT_LEAFLETBOUNDINGOPACITY'] = 0.6
>>> config['VRV_DEFAULT_LEAFLETBOUNDINGSTYLE'] = 'dashed'
>>> config['VRV_DEFAULT_LEAFLETBOUNDINGCOLOR'] = 'brown'

Default Cesium Styles

For the nodes/icons

>>> config['VRV_DEFAULT_CESIUMICONTYPE'] = 'pin'
>>> config['VRV_DEFAULT_CESIUMICONSIZE'] = 40
>>> config['VRV_DEFAULT_CESIUMICONCOLOR'] = 'Cesium.Color.BLUE'

For the assignments

>>> config['VRV_DEFAULT_CESIUMPATHCOLOR'] = 'Cesium.Color.ORANGE'
>>> config['VRV_DEFAULT_CESIUMPATHWEIGHT'] = 3
>>> config['VRV_DEFAULT_CESIUMPATHSTYLE'] = 'solid'
>>> config['VRV_DEFAULT_CESIUMPATHOPACITY'] = 0.8

Settings

pgRouting database settings

>>> config['VRV_SETTING_PGROUTING_USERNAME'] = 'user'
>>> config['VRV_SETTING_PGROUTING_HOST'] = 'localhost'
>>> config['VRV_SETTING_PGROUTING_PASSWORD'] = ''

Information and message settings

>>> config['VRV_SETTING_SHOWWARNINGMESSAGE'] = True
>>> config['VRV_SETTING_SHOWOUTPUTMESSAGE'] = True