label.mss

// LABEL.MSS CONTENTS:
// 1__ Ocean & Marine Labels
// 2__ Place Names
//     2_1__ Countries
//     2_2__ States
//     2_3__ Cities
//     2_4__ Towns
//     2_5__ Villages
//     2_6__ Suburbs
//     2_7__ Neighbourhoods & Hamlets
// 4__ Water Labels 
// 5__ Road Labels

// Font sets are defined in vars.mss

// =====================================================================
// 1__ OCEAN & MARINE LABELS
// =====================================================================

#marine_label[zoom>=2]["mapnik::geometry_type"=1],
#marine_label[zoom>=2]["mapnik::geometry_type"=2] {
  text-name: @name;
  text-face-name: @sans_lt_italic;
  text-fill: lighten(@water,20);
  ["mapnik::geometry_type"=1] {
    text-placement: point;
    text-wrap-width: 30;
  }
  ["mapnik::geometry_type"=2] {
    text-placement: line;
  }
  [labelrank=1][zoom>=2],
  [labelrank=2][zoom>=3],
  [labelrank=3][zoom>=4],
  [labelrank=4][zoom>=5],
  [labelrank=5][zoom>=6],
  [labelrank=6][zoom>=7] {
    text-size: 13;
    text-character-spacing: 1;
  }
  [labelrank=1][zoom>=3],
  [labelrank=2][zoom>=4],
  [labelrank=3][zoom>=5],
  [labelrank=4][zoom>=6],
  [labelrank=5][zoom>=7],
  [labelrank=6][zoom>=8] {
    text-size: 16;
    text-character-spacing: 2;
  }
  [labelrank=1][zoom>=4],
  [labelrank=2][zoom>=5],
  [labelrank=3][zoom>=6] {
    text-size: 20;
    text-character-spacing: 4;
  }
  [labelrank=1][zoom>=5],
  [labelrank=2][zoom>=6],
  [labelrank=3][zoom>=7] {
    text-size: 24;
    text-character-spacing: 8;
  }
}


// =====================================================================
// 2__ PLACE NAMES
// =====================================================================

// 2_1__ Countries _____________________________________________________

#country_label[zoom>=2][zoom<=10] {
  text-name: @name;
  text-face-name: @sans_bold;
  [zoom=2] { text-face-name: @sans; }
  text-placement: point;
  text-size: 9;
  text-fill: @country_text;
  text-halo-fill: @country_halo;
  text-halo-radius: 1;
  text-halo-rasterizer: fast;
  text-wrap-width: 20;
  text-wrap-before: true;
  text-line-spacing: -3;
  [scalerank=1] {
    [zoom=3]  { text-size: 12; text-wrap-width: 60; }
    [zoom=4]  { text-size: 14; text-wrap-width: 90; }
    [zoom=5]  { text-size: 20; text-wrap-width: 120; }
    [zoom>=6] { text-size: 20; text-wrap-width: 120; }
  }
  [scalerank=2] {
    [zoom=2]  { text-name: [code]; }
    [zoom=3]  { text-size: 11; }
    [zoom=4]  { text-size: 13; }
    [zoom=5]  { text-size: 17; }
    [zoom>=6] { text-size: 20; }
  }
  [scalerank=3] {
    [zoom=3]  { text-name: [code]; }
    [zoom=4]  { text-size: 11; }
    [zoom=5]  { text-size: 15; }
    [zoom=6]  { text-size: 17; }
    [zoom=7]  { text-size: 18; text-wrap-width: 60; }
    [zoom>=8] { text-size: 20; text-wrap-width: 120; }
  }
  [scalerank=4] {
    [zoom=5] { text-size: 13; }
    [zoom=6] { text-size: 15; text-wrap-width: 60  }
    [zoom=7] { text-size: 16; text-wrap-width: 90; }
    [zoom=8] { text-size: 18; text-wrap-width: 120; }
    [zoom>=9] { text-size: 20; text-wrap-width: 120; }
  }
  [scalerank=5] {
    [zoom=5] { text-size: 11; }
    [zoom=6] { text-size: 13; }
    [zoom=7] { text-size: 14; text-wrap-width: 60; }
    [zoom=8] { text-size: 16; text-wrap-width: 90; }
    [zoom>=9] { text-size: 18; text-wrap-width: 120; }
  }
  [scalerank>=6] {
    [zoom=7] { text-size: 12; }
    [zoom=8] { text-size: 14; }
    [zoom>=9] { text-size: 16; }
  }
}


// 2_2__ States ________________________________________________________

#state_label[zoom>=4][zoom<=10] {
  text-name: [abbr];
  text-face-name: @sans_lt;
  text-placement: point;
  text-fill: @state_text;
  text-halo-fill: fadeout(lighten(@land,5%),50%);
  text-halo-radius: 1;
  text-halo-rasterizer: fast;
  text-size: 9;
  [zoom>=5][area>100000],
  [zoom>=6][area>50000],
  [zoom>=7][area>10000],
  [zoom>=8][area<=10000] {
    text-name: @name;
  }
  [zoom>=5][zoom<=6] {
    [area>10000] { text-size: 12; }
    [area>50000] { text-size: 14; }
    text-wrap-width: 40;
  }
  [zoom>=7][zoom<=8] {
    text-size: 14;
    [area>50000] { text-size: 16; text-character-spacing: 1; }
    [area>100000] { text-size: 18; text-character-spacing: 3; }
    text-wrap-width: 60;
  }
  [zoom>=9][zoom<=10] {
    text-halo-radius: 2;
    text-size: 16;
    text-character-spacing: 2;
    [area>50000] { text-size: 18; text-character-spacing: 2; }
    text-wrap-width: 100;
  }
}

// 2_3__ Cities ________________________________________________________

// City labels with dots for low zoom levels.
// The separate attachment keeps the size of the XML down.
#place_label::citydots[zoom>=4][zoom<=7][localrank<=2] {
  // explicitly defining all the `ldir` values wer'e going
  // to use shaves a bit off the final project.xml size
  [ldir='N'],[ldir='S'],[ldir='E'],[ldir='W'],
  [ldir='NE'],[ldir='SE'],[ldir='SW'],[ldir='NW'] {
    shield-file: url("img/icon/dot.svg");
    shield-unlock-image: true;
    shield-name: @name;
    shield-face-name: @sans;
    shield-placement: point;
    shield-fill: @city_text;
    shield-halo-fill: #fff;
    shield-halo-radius: 1.5;
    shield-wrap-width: 40;
    shield-line-spacing: -4;
    shield-size: 11;
    [zoom>=5] {
      [scalerank>=0][scalerank<=2] { shield-size: 13; }
      [scalerank>=3][scalerank<=5] { shield-size: 12; }
    }
    [zoom>=6] {
      [scalerank>=0][scalerank<=2] { shield-size: 14; }
      [scalerank>=3][scalerank<=5] { shield-size: 12; }
    }
    [zoom=7] {
      [scalerank>=0][scalerank<=2] { shield-size: 15; }
      [scalerank>=3][scalerank<=5] { shield-size: 13; }
      [scalerank>=6] { shield-size: 12; }
    }
    [ldir='E'] { shield-text-dx: 4; }
    [ldir='W'] { shield-text-dx: -4; }
    [ldir='N'] { shield-text-dy: -4; }
    [ldir='S'] { shield-text-dy: 4; }
    [ldir='NE'] { shield-text-dx: 4; shield-text-dy: -3; }
    [ldir='SE'] { shield-text-dx: 4; shield-text-dy: 5; }
    [ldir='SW'] { shield-text-dx: -3; shield-text-dy: 3; }
    [ldir='NW'] { shield-text-dx: -4; shield-text-dy: -3; }
  }
}

// For medium to high zoom levels we do away with the dot
// and center place labels on their point location.
#place_label[type='city'][zoom>=8][zoom<=15][localrank=1] {
  text-name: @name;
  text-face-name: @sans;
  text-placement: point;
  text-fill: @city_text;
  text-halo-fill: #fff;
  text-halo-radius: 1;
  text-halo-rasterizer: fast;
  text-wrap-width: 40;
  text-line-spacing: -4;
  // We keep the scalerank filters the same for each zoom level.
  // This is slightly inefficient-looking CartoCSS, but it saves
  // some space in the project.xml
  [zoom=8] {
    text-size: 13;
    text-wrap-width: 60;
    [scalerank>=0][scalerank<=1] { text-size: 18; }
    [scalerank>=2][scalerank<=3] { text-size: 16; }
    [scalerank>=4][scalerank<=5] { text-size: 15; }
    [scalerank>=6] { text-size: 13; }
  }
  [zoom=9] {
    text-size: 14;
    text-wrap-width: 60;
    [scalerank>=0][scalerank<=1] { text-size: 19; }
    [scalerank>=2][scalerank<=3] { text-size: 17; }
    [scalerank>=4][scalerank<=5] { text-size: 16; }
    [scalerank>=6] { text-size: 14; }
  }
  [zoom=10] {
    text-size: 15;
    text-wrap-width: 70;
    [scalerank>=0][scalerank<=1] { text-size: 20; }
    [scalerank>=2][scalerank<=3] { text-size: 19; }
    [scalerank>=4][scalerank<=5] { text-size: 17; }
    [scalerank>=6] { text-size: 15; }
  }
  [zoom=11] {
    text-size: 16;
    text-wrap-width: 80;
    [scalerank>=0][scalerank<=1] { text-size: 20; }
    [scalerank>=2][scalerank<=3] { text-size: 19; }
    [scalerank>=4][scalerank<=5] { text-size: 17; }
    [scalerank>=6] { text-size: 16; }
  }
  [zoom=12] {
    text-size: 17;
    text-wrap-width: 100;
    [scalerank>=0][scalerank<=1] { text-size: 20; }
    [scalerank>=2][scalerank<=3] { text-size: 19; }
    [scalerank>=4][scalerank<=5] { text-size: 18; }
    [scalerank>=6] { text-size: 17; }
  }
  [zoom=13] {
    text-fill: mix(@city_text,@land,80);
    text-size: 18;
    text-wrap-width: 200;
    [scalerank>=0][scalerank<=1] { text-size: 20; }
    [scalerank>=2][scalerank<=3] { text-size: 19; }
    [scalerank>=4][scalerank<=5] { text-size: 19; }
    [scalerank>=6] { text-size: 17; }
  }
  [zoom=14] {
    text-fill: mix(@city_text,@land,60);
    text-size: 19;
    text-wrap-width: 300;
    [scalerank>=0][scalerank<=1] { text-size: 20; }
    [scalerank>=2][scalerank<=3] { text-size: 20; }
    [scalerank>=4][scalerank<=5] { text-size: 19; }
    [scalerank>=6] { text-size: 18; }
  }
  [zoom=15] {
    text-fill: mix(@city_text,@land,40);
    text-size: 20;
    text-wrap-width: 400;
    [scalerank>=0][scalerank<=1] { text-size: 20; }
    [scalerank>=2][scalerank<=3] { text-size: 20; }
    [scalerank>=4][scalerank<=5] { text-size: 20; }
    [scalerank>=6] { text-size: 19; }
  }
}

// 2_4__ Towns _________________________________________________________

#place_label[type='town'][zoom>=8][zoom<=17][localrank<=1] {
  text-name: @name;
  text-face-name: @sans;
  text-placement: point;
  text-fill: @town_text;
  text-halo-fill: @town_halo;
  text-halo-radius: 1;
  text-halo-rasterizer: fast;
  text-wrap-width: 75;
  text-wrap-before: true;
  text-line-spacing: -4;
  text-size: 11;
  [zoom>=8] { text-size: 12; }
  [zoom>=10] { text-size: 13; }
  [zoom>=11] { text-size: 14; }
  [zoom>=12] { text-size: 15; text-wrap-width: 80; }
  [zoom>=13] {
    text-fill: mix(@city_text,@land,80);
    text-size: 16;
    text-wrap-width: 120;
  }
  [zoom>=14] {
    text-fill: mix(@city_text,@land,60);
    text-size: 18;
    text-wrap-width: 160;
  }
  [zoom>=15] {
    text-fill: mix(@city_text,@land,40);
    text-size: 20;
    text-wrap-width: 200;
  }
  [zoom>=16] { text-size: 22; text-wrap-width: 240; }
}

// 2_5 Villages ______________________________________________________

#place_label[type='village'][zoom>=10][zoom<=14][localrank<=1],
#place_label[type='village'][zoom>=15][zoom<=17] {
  text-name: @name;
  text-face-name: @sans;
  text-placement: point;
  text-fill: @town_text;
  text-size: 11;
  text-halo-fill: @town_halo;
  text-halo-radius: 1.5;
  text-halo-rasterizer: fast;
  text-wrap-width: 60;
  text-wrap-before: true;
  text-line-spacing: -4;
  [zoom>=12] { text-size: 12; }
  [zoom>=13] { text-wrap-width: 80; }
  [zoom>=14] { text-size: 14; text-wrap-width: 100; }
  [zoom>=15] { text-size: 16; text-wrap-width: 120; }
  [zoom>=16] { text-size: 18; text-wrap-width: 160; }
  [zoom=17] { text-size: 20; text-wrap-width: 200; }
}

// 2_6__ Suburbs _______________________________________________________

#place_label[type='suburb'][zoom>=12][zoom<=14][localrank<=1],
#place_label[type='suburb'][zoom>=15][zoom<=18] {
  text-name: @name;
  text-face-name: @sans_lt;
  text-placement: point;
  text-fill: @other_text;
  text-size: 11;
  text-halo-fill: @other_halo;
  text-halo-radius: 1.5;
  text-halo-rasterizer: fast;
  text-wrap-width: 60;
  text-wrap-before: true;
  text-line-spacing: -2;
  [zoom>=13] { text-size: 12; text-min-distance: 20; }
  [zoom>=14] { text-size: 13; text-wrap-width: 80; }
  [zoom>=15] { text-size: 14; text-wrap-width: 120; }
  [zoom>=16] { text-size: 16; text-wrap-width: 160; }
  [zoom>=17] { text-size: 20; text-wrap-width: 200; }
}

// 2_7__ Neighbourhoods & Hamlets ______________________________________

#place_label[zoom>=13][zoom<=14][localrank<=1],
#place_label[zoom>=15][zoom<=18] {
  [type='hamlet'],
  [type='neighbourhood'] {
    text-name: @name;
    text-face-name: @sans_lt;
    text-placement: point;
    text-fill: @other_text;
    text-size: 11;
    text-halo-fill: @other_halo;
    text-halo-radius: 1.5;
    text-halo-rasterizer: fast;
    text-wrap-width: 60;
    text-wrap-before: true;
    text-line-spacing: -2;
    [zoom>=14] { text-size: 12; text-wrap-width: 80; }
    [zoom>=16] { text-size: 14; text-wrap-width: 100; }
    [zoom>=17] { text-size: 16; text-wrap-width: 130; }
    [zoom>=18] { text-size: 18; text-wrap-width: 160; }
  }
}


// =====================================================================
// 4__ WATER LABELS
// =====================================================================

#water_label {
  [zoom<=15][area>200000],
  [zoom=16][area>50000],
  [zoom=17][area>10000],
  [zoom>=18][area>0]{
    text-name: @name;
    text-fill: lighten(@water,25);
    text-halo-fill: darken(@water,10);
    text-halo-radius: 1;
    text-halo-rasterizer: fast;
    text-size: 11;
    text-wrap-width: 50;
    text-wrap-before: true;
    text-line-spacing: -2;
    text-face-name: @sans_italic;
  }
  [zoom>=14][area>3200000],
  [zoom>=15][area>800000],
  [zoom>=16][area>200000],
  [zoom>=17][area>50000],
  [zoom>=18][area>10000] {
    text-size: 12;
    text-wrap-width: 75;
  }
  [zoom>=15][area>3200000],
  [zoom>=16][area>800000],
  [zoom>=17][area>200000],
  [zoom>=18][area>50000] {
    text-size: 14;
    text-wrap-width: 100;
  }
  [zoom>=16][area>3200000],
  [zoom>=17][area>800000],
  [zoom>=18][area>200000] {
    text-size: 16;
    text-wrap-width: 125;
  }
  [zoom>=17][area>3200000],
  [zoom>=18][area>800000] {
    text-size: 18;
    text-wrap-width: 150;
  }
}

#waterway_label[class='river'][zoom>=13],
#waterway_label[class='canal'][zoom>=15],
#waterway_label[class='stream'][zoom>=17],
#waterway_label[class='stream_intermittent'][zoom>=17] {
  text-avoid-edges: true;
  text-name: @name;
  text-face-name: @sans_italic;
  text-fill: lighten(@water,25);
  text-halo-fill: darken(@water,10);
  text-halo-radius: 1;
  text-halo-rasterizer: fast;
  text-placement: line;
  text-size: 10;
  text-character-spacing: 1;
  [class='river'][zoom=14],
  [class='canal'][zoom=16],
  [class='stream'][zoom>=18],
  [class='stream_intermittent'][zoom>=18] {
    text-size: 10;
  }
  [class='river'][zoom=15],
  [class='canal'][zoom>=17] {
    text-size: 11;
  }
  [class='river'][zoom>=16],
  [class='canal'][zoom>=18] {
    text-size: 14;
    text-spacing: 300;
  }
}


// =====================================================================
// 5__ ROAD LABELS
// =====================================================================

// highway shield
#road_label::shield-pt[class='motorway'][zoom>=7][zoom<=10][localrank=1][reflen<=6],
#road_label::shield-pt[class='motorway'][zoom>=9][zoom<=10][localrank=1][reflen<=6],
#road_label::shield-ln[zoom>=11][reflen<=6] {
  shield-name: "[ref].replace('·', '\n')";
  shield-size: 9;
  shield-line-spacing: -4;
  shield-file: url('img/shield/[shield]-[reflen].svg');
  shield-face-name: @sans;
  shield-fill: #333;
  [zoom>=14] {
    shield-transform: scale(1.25,1.25);
    shield-size: 11;
  }
}
#road_label::shield-pt[class='motorway'][zoom>=7][zoom<=10][localrank=1][reflen<=6],
#road_label::shield-pt[class='motorway'][zoom>=9][zoom<=10][localrank=1][reflen<=6] {
  shield-placement: point;
  shield-avoid-edges: false;
}
#road_label::shield-ln[zoom>=11][reflen<=6] {
  shield-placement: line;
  shield-spacing: 400;
  shield-min-distance: 100;
  shield-avoid-edges: true;
}

// regular labels
#road_label['mapnik::geometry_type'=2] {
  // Longer roads get a label earlier as they are likely to be more
  // important. This especially helps label density in rural/remote areas.
  // This z14 filter is *not* redundant to logic in SQL queries. Because z14
  // includes all data for z14+ via overzooming, the streets included in a
  // z14 vector tile include more features than ideal for optimal performance.
  [class='motorway'][zoom>=12],
  [class='main'][zoom>=12],
  [class='street'][zoom<=14][len>2500],
  [class='street'][zoom>=15],
  [class='street_limited'] {
    text-avoid-edges: true;
    text-transform: uppercase;
    text-name: @name;
    text-character-spacing: 0.25;
    text-placement: line;
    text-face-name: @sans;
    text-fill: #444;
    text-size: 8;
    text-halo-fill: @road_halo;
    text-halo-radius: 1.5;
    text-halo-rasterizer: fast;
    text-min-distance: 200; // only for labels w/ the same name
    [zoom>=14] { text-size: 9; }
    [zoom>=16] { text-size: 11; }
    [zoom>=18] { text-size: 12; }
    [class='motorway'],
    [class='main'] {
      [zoom>=14] { text-size: 10; }
      [zoom>=16] { text-size: 11; text-face-name: @sans_bold; }
      [zoom>=17] { text-size: 12; }
      [zoom>=18] { text-size: 14; }
    }
  }
}

// less prominent labels for all other types, by length
#road_label['mapnik::geometry_type'=2]
[class!='motorway']
[class!='main']
[class!='street']
[class!='street_limited'] {
  [len>10000][zoom>=12],
  [len>5000][zoom>=13],
  [len>2500][zoom>=14],
  [len>1200][zoom>=15],
  [len>0][zoom>=16] {
    text-avoid-edges: true;
    text-name: @name;
    text-character-spacing: 0.25;
    text-placement: line;
    text-face-name: @sans;
    text-fill: #666;
    text-size: 9;
    text-halo-fill: @road_halo;
    text-halo-radius: 1.5;
    text-halo-rasterizer: fast;
    text-min-distance: 200; // only for labels w/ the same name
    [zoom>=17] { text-size: 10; }
    [zoom>=18] { text-size: 11; }
  }
}

// =====================================================================
// ADDRESS LABELS
// =====================================================================

#housenum_label[zoom>=18] {
  text-name:'[house_num]';
  text-face-name: @sans_lt_italic;
  text-fill: darken(@building, 20%);
  text-wrap-width: 50;
  text-wrap-before: true;
  text-placement:point;
  text-size: 9;
  [zoom>=19] {
    text-size: 11;
    text-character-spacing: -0.5;
  }
}


/**/