a proposal for improving cartographic legibility of...

1INSPIRE ConferenceJune 2012INSPIRE Conference 1June 2012

A Proposal for Improving Cartographic

Legibility of Inspire Default Symbology

A. F. Rodríguez, P. Abad, E. López. A. Sánchez, C.

Ruiz, M. Juanatey, L. Hernández, C. Soteres V.

Ramos.

2INSPIRE ConferenceJune 2012

� INSPIRE View Service

National Geographic Institute

Anomalía de Bouguer http://www.idee.es/wms/IDEE-Bouguer/IDEE-Bouguer

Atlas Nacional de España -

Clasificacion de suelos

http://www.idee.es/wms/IGN-ANE-Humedad_Temperatura/IGN-ANE-

Humedad_Temperatura

Atlas Nacional de España-

Biogeografía y ciencia del suelo /

Génesis de Suelos 6

http://www.idee.es/wms/IGN-ANE_Genesis_Suelo6/IGN-

ANE_Genesis_Suelo6

Atlas Nacional de España: demografía y asentamientos

humanos

http://www.idee.es/wms/IGN-ANE_Demografia/IGN-

ANE_Demografia

Camino de Santiago http://www.idee.es/wms/IGN-Camino-Santiago/IGN-Camino-Santiago

CartoCiudad http://www.cartociudad.es/wms/CARTOCIUDAD/CARTOCIUDAD

CORINE - Mapa ocupación suelo http://www.idee.es/wms/IGN-Corine/IGN-Corine

Cuadrículas http://www.idee.es/wms/IDEE-Cuadricula-Hojas/IDEE-Cuadricula-

Hojas

Estaciones sísmicas http://www.idee.es/wms-c/IGN-Sismologia/IGN-Sismologia

………….. ..............................

Mapa Topográfico Nacional 1:25000 http://www.idee.es/wms/MTN-Raster/MTN-Raster

Ortofotos PNOA máxima actualidad http://www.idee.es/wms/PNOA/PNOA

Redes Geodésicas http://www.idee.es/wms/IDEE-Referencia/IDEE-Referencia

Mapa base de España http://www.ign.es/wms-inspire/ign-base

Servicio 3D basado imágenes estereoscópicas sintéticas http://www.ign.es/3d-stereo/wms/3d-stereo.dll

Old WMS v1.1.1 and 1.3.0

INSPIRE View Service


IGN-Base WMS

A INSPIRE VIEW SERVICE: IGN-Base

http://www.ign.es/wms_inspire/ign-base

compliant with INSPIRE Regulations and Technical Guidelines

Regulation as regards the Network Services

Technical Guidance for the implementation of INSPIRE View Services

Regulation as regards Interoperability of Spatial Data sets and

Services.

Metadata Regulation and INSPIRE Metadata implementing

Guidelines

providing maps of the IGN at different scales and different themes

using open source technology


GetCapabilities IGN-Base

A INSPIRE VIEW SERVICE: IGN-Base. One layer has two styles:

IGN Style

Default Style defined INSPIRE <inspire_common:DEFAULT>

<Style>

<Name>Toponimo</Name>

<Title>IGN:Estilo de Topónimos</Title>

<Abstract>Estilo de representación del IGN</Abstract>

<LegendURL width="225" height="140">

<OnlineResource xlink:type="simple" xlink:href="http://www.ign.es/wms- inspire/ign-

base/leyendas/Toponimo.png"/>

</LegendURL>

</Style>

<Style>

<Name> GN.GeographicalNames.Default Name>

<Title>I GN.GeographicalNames.Default </Title>

<Abstract>INSPIRE Default Style</Abstract>

<LegendURL width="225" height="140">

<OnlineResource xlink:type="simple" xlink:href=" http://www.ign.es/wms-inspire/ign-

base/leyendas/GN.GeographicalNames.Default.png "/>

</LegendURL>

</Style>


Regulation interoperability of spatial data sets and services

For the portrayal of spatial data sets using a view

network service shall be available:

(a) the layers specified in Annex II of Regulation

interoperability of spatial data sets and services

(b) for each layer

at least a default portrayal style

a human readable title of the layer to be used for display in user

interface;

the spatial object type o types that constitute the content of the

layer


Style and SD

Each Data Specification contains a section on “Portrayal”, where it defines the rules

for layers and styles to be used for portrayal of the spatial object types defined for

each theme.

For each spatial object type in the specification, a type of layer is defined for its

portrayal.

Layer Name Layer Title Spatial object type(s) Keywords

HY.PhysicalWaters.Wa

terbodies

Waterbody Watercourse,

StandingWater

Watercourse, River,

Stream, Lake, Reservoir

GN.GeographicalNames Geographical

Names

NamedPlace geographical name,

place name, ..


Style and SD

INSPIRE view services supports the portrayal of data, then:

it shall provide layers of the types.

it shall support the default styles

If no user-defined style is specified in a portrayal request for a specific layer to

an INSPIRE view service, the default style specified for that layer shall be used.

Layer Name AU.AdministrativeUnit

Style Name AU.AdministrativeUnit.Default

Style Title Administrative Unit Default Style

Style Description The administrative unit is rendered using a yellow f(#FFFF66)

fill.

Symbology File SDL

Minimum & maximum scales No scale limits


Regulation interoperability of spatial data sets and services

For InstanceLayer Name Layer Title Spatial object type

GN.GeographicalNames Geographical Names NamedPlace

All names are displayed in black, with font Arial 10pt, and located in order to touch the

geometry of the named place, at its centre if possible.

IGN Style INSPIRE Default Style


� Other points

There is no requirement in the Directive about portrayal,

but to guarantee that spatial data is portrayed in view

services, basic rules are necessary.

The view service according to the Directive

is not understood as a capability to create high-quality maps

but a capability to view the data.


� Other points

To reflect that proper cartographic visualization is out-of-

scope of INSPIRE, portrayal will at this stage only be

addressed from the perspective of a single theme only.

This means that generally it is not expected that cross-theme

issues are addressed in the data specifications.

National Style

INSPIRE Default Style


� Other points

National Style



Other points

Each DS specifies the default styles to be used for each of these

layer types, by a SLD file.

Feature Type Style Symbology

WatercourseLink Dafault



INSPIRE Default StyleIGN Style


INSPIRE Default StyleINSPIRE Default Style


Same scale


Levelofdetail: In view, a spatial objects are provided at different spatial

resolutions, the spatial resolution must be specified for each spatial object

using the levelOfDetail where applicable.


� Other portrayal

In cases where no agreed/standardized style exists in a

community for the portrayal of a layer, the following three

simple styles (for points, curves and surfaces, respectively)

shall be used as default styles, which use the defaults

specified in the respective symbolisers of the Symbology

Encoding standard:

Point - grey square, 6 pixels

Curve - black solid line, 1 pixel

Surface - black solid line, 1 pixel, grey fill.


To conclude

Since is desired that view services provide harmonization

view about the data, the default style definition for each

spatial object type is essential. Therefore the portrayal

definitions developed by TWG has been very important.

However, the TWG should make an effort in order to

improve the quality of the symbolization and should study

cross-themes issues in details.

All DS can be extended the style defining not only a default

style but also a well-defined style

Thank you for your attention


Paloma abad

National Geographic Institute

[email protected]

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