d3js v5 + topojson v3 Access to the object's properties in the background

up vote
0
down vote

favorite

I'm looking for a tip to access to the object's properties in the background.
Indeed, with a mousehover, I want to reveal the properties of layer ze.json (the geographical unit).

However, my proportionnal circles hide this layer.
enter image description here

I have not really idea of the procedure envisaged because :

Circle proportional must be on the top

Opacity doesn't solve the problem

Maybe I should report the information on proportional circles. But how could I transfer this information ? (not only the population but also the ZE name)

Proportionnal Circles

let rMax = d3.max(featureCollectionZe.features,(d)=>{return d.properties.pop;});



let propCircle = g.attr("class","prop_circle")

    .selectAll(".prop_circle")

    .data(featureCollectionZe.features)

    .enter()

    .append("circle")

    .attr("transform", (d)=>{return "translate(" + path.centroid(d) + ")";})

    .attr("r",(d)=>{return(Math.sqrt(d.properties.pop/rMax))*30;})

    .attr("fill","#ffa500")

    .attr("fill-opacity",0.8)

    .attr("stroke-width",1)

Mouse event

svgZe

    .on("mouseover",

        (e)=>{return document.getElementById("name").innerHTML=e.properties.nom_ze,

        document.getElementById("pop").innerHTML=e.properties.pop;}

    )

    .on("mouseout",

        (e)=>{return document.getElementById("name").innerHTML="&nbsp",

        document.getElementById("pop").innerHTML="&nbsp";}

    )

Here is my code : https://plnkr.co/edit/ZzeHWfChXa348iNBcHWQ

asked Nov 22 at 17:20

Bellice

1088

side notes: zoom can be shortened by g.attr("transform", d3.event.transform); , what is that purpose of the last .append("g"); , make the stroke of the .ze. more explicit in the style, it is now due to render artefacts that you see the edges
– rioV8
Nov 22 at 21:10

Thank you for the tip! Indeed, .append("g") has no sense. I had a displacement problem when I click+move the map with the mouse (latency) but seems disappeared now.
– Bellice
Nov 23 at 10:06

add a comment |

up vote
0
down vote

favorite

I'm looking for a tip to access to the object's properties in the background.
Indeed, with a mousehover, I want to reveal the properties of layer ze.json (the geographical unit).

However, my proportionnal circles hide this layer.
enter image description here

I have not really idea of the procedure envisaged because :

Circle proportional must be on the top

Opacity doesn't solve the problem

Maybe I should report the information on proportional circles. But how could I transfer this information ? (not only the population but also the ZE name)

Proportionnal Circles

let rMax = d3.max(featureCollectionZe.features,(d)=>{return d.properties.pop;});



let propCircle = g.attr("class","prop_circle")

    .selectAll(".prop_circle")

    .data(featureCollectionZe.features)

    .enter()

    .append("circle")

    .attr("transform", (d)=>{return "translate(" + path.centroid(d) + ")";})

    .attr("r",(d)=>{return(Math.sqrt(d.properties.pop/rMax))*30;})

    .attr("fill","#ffa500")

    .attr("fill-opacity",0.8)

    .attr("stroke-width",1)

Mouse event

svgZe

    .on("mouseover",

        (e)=>{return document.getElementById("name").innerHTML=e.properties.nom_ze,

        document.getElementById("pop").innerHTML=e.properties.pop;}

    )

    .on("mouseout",

        (e)=>{return document.getElementById("name").innerHTML="&nbsp",

        document.getElementById("pop").innerHTML="&nbsp";}

    )

Here is my code : https://plnkr.co/edit/ZzeHWfChXa348iNBcHWQ

asked Nov 22 at 17:20

Bellice

1088

side notes: zoom can be shortened by g.attr("transform", d3.event.transform); , what is that purpose of the last .append("g"); , make the stroke of the .ze. more explicit in the style, it is now due to render artefacts that you see the edges
– rioV8
Nov 22 at 21:10

Thank you for the tip! Indeed, .append("g") has no sense. I had a displacement problem when I click+move the map with the mouse (latency) but seems disappeared now.
– Bellice
Nov 23 at 10:06

add a comment |

up vote
0
down vote

favorite

I'm looking for a tip to access to the object's properties in the background.
Indeed, with a mousehover, I want to reveal the properties of layer ze.json (the geographical unit).

However, my proportionnal circles hide this layer.
enter image description here

I have not really idea of the procedure envisaged because :

Circle proportional must be on the top

Opacity doesn't solve the problem

Maybe I should report the information on proportional circles. But how could I transfer this information ? (not only the population but also the ZE name)

Proportionnal Circles

let rMax = d3.max(featureCollectionZe.features,(d)=>{return d.properties.pop;});



let propCircle = g.attr("class","prop_circle")

    .selectAll(".prop_circle")

    .data(featureCollectionZe.features)

    .enter()

    .append("circle")

    .attr("transform", (d)=>{return "translate(" + path.centroid(d) + ")";})

    .attr("r",(d)=>{return(Math.sqrt(d.properties.pop/rMax))*30;})

    .attr("fill","#ffa500")

    .attr("fill-opacity",0.8)

    .attr("stroke-width",1)

Mouse event

svgZe

    .on("mouseover",

        (e)=>{return document.getElementById("name").innerHTML=e.properties.nom_ze,

        document.getElementById("pop").innerHTML=e.properties.pop;}

    )

    .on("mouseout",

        (e)=>{return document.getElementById("name").innerHTML="&nbsp",

        document.getElementById("pop").innerHTML="&nbsp";}

    )

Here is my code : https://plnkr.co/edit/ZzeHWfChXa348iNBcHWQ

asked Nov 22 at 17:20

Bellice

1088

I'm looking for a tip to access to the object's properties in the background.
Indeed, with a mousehover, I want to reveal the properties of layer ze.json (the geographical unit).

However, my proportionnal circles hide this layer.
enter image description here

I have not really idea of the procedure envisaged because :

Circle proportional must be on the top

Opacity doesn't solve the problem

Maybe I should report the information on proportional circles. But how could I transfer this information ? (not only the population but also the ZE name)

Proportionnal Circles

let rMax = d3.max(featureCollectionZe.features,(d)=>{return d.properties.pop;});



let propCircle = g.attr("class","prop_circle")

    .selectAll(".prop_circle")

    .data(featureCollectionZe.features)

    .enter()

    .append("circle")

    .attr("transform", (d)=>{return "translate(" + path.centroid(d) + ")";})

    .attr("r",(d)=>{return(Math.sqrt(d.properties.pop/rMax))*30;})

    .attr("fill","#ffa500")

    .attr("fill-opacity",0.8)

    .attr("stroke-width",1)

Mouse event

svgZe

    .on("mouseover",

        (e)=>{return document.getElementById("name").innerHTML=e.properties.nom_ze,

        document.getElementById("pop").innerHTML=e.properties.pop;}

    )

    .on("mouseout",

        (e)=>{return document.getElementById("name").innerHTML="&nbsp",

        document.getElementById("pop").innerHTML="&nbsp";}

    )

Here is my code : https://plnkr.co/edit/ZzeHWfChXa348iNBcHWQ

javascript d3.js topojson

asked Nov 22 at 17:20

Bellice

1088

asked Nov 22 at 17:20

Bellice

1088

asked Nov 22 at 17:20

Bellice

1088

asked Nov 22 at 17:20

Bellice

1088

asked Nov 22 at 17:20

Bellice

1088

side notes: zoom can be shortened by g.attr("transform", d3.event.transform); , what is that purpose of the last .append("g"); , make the stroke of the .ze. more explicit in the style, it is now due to render artefacts that you see the edges
– rioV8
Nov 22 at 21:10

Thank you for the tip! Indeed, .append("g") has no sense. I had a displacement problem when I click+move the map with the mouse (latency) but seems disappeared now.
– Bellice
Nov 23 at 10:06

add a comment |

side notes: zoom can be shortened by g.attr("transform", d3.event.transform); , what is that purpose of the last .append("g"); , make the stroke of the .ze. more explicit in the style, it is now due to render artefacts that you see the edges
– rioV8
Nov 22 at 21:10

Thank you for the tip! Indeed, .append("g") has no sense. I had a displacement problem when I click+move the map with the mouse (latency) but seems disappeared now.
– Bellice
Nov 23 at 10:06

side notes: zoom can be shortened by g.attr("transform", d3.event.transform); , what is that purpose of the last .append("g"); , make the stroke of the .ze. more explicit in the style, it is now due to render artefacts that you see the edges
– rioV8
Nov 22 at 21:10

Thank you for the tip! Indeed, .append("g") has no sense. I had a displacement problem when I click+move the map with the mouse (latency) but seems disappeared now.
– Bellice
Nov 23 at 10:06

add a comment |

1 Answer
1

active

oldest

votes

up vote
1
down vote

accepted

I am not sure, that this solves your problem completely, but have you tried to apply pointer-events: none CSS property to circles?

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

Indeed, it works. Thank you again!
– Bellice
Nov 23 at 8:40

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

up vote
1
down vote

accepted

I am not sure, that this solves your problem completely, but have you tried to apply pointer-events: none CSS property to circles?

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

Indeed, it works. Thank you again!
– Bellice
Nov 23 at 8:40

add a comment |

up vote
1
down vote

accepted

I am not sure, that this solves your problem completely, but have you tried to apply pointer-events: none CSS property to circles?

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

Indeed, it works. Thank you again!
– Bellice
Nov 23 at 8:40

add a comment |

up vote
1
down vote

accepted

I am not sure, that this solves your problem completely, but have you tried to apply pointer-events: none CSS property to circles?

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

I am not sure, that this solves your problem completely, but have you tried to apply pointer-events: none CSS property to circles?

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

answered Nov 22 at 17:29

Yaroslav Sergienko

40016

Indeed, it works. Thank you again!
– Bellice
Nov 23 at 8:40

add a comment |

Indeed, it works. Thank you again!
– Bellice
Nov 23 at 8:40

Indeed, it works. Thank you again!
– Bellice
Nov 23 at 8:40

add a comment |

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