Show igate in circuit diagram

[ty-zhao]

Hi all,

The identity gates igate are hidden in the plot made with YaoPlots.vizcircuit() by default. Is there a way to show it as a letter 'I' in a square box?

[GiggleLiu]

Yes, just wrap it with the LabelBlock.

Yao.jl/lib/YaoPlots/src/helperblock.jl

Line 9 in c23f515

struct LabelBlock{BT<:AbstractBlock,D} <: TagBlock{BT,D}

Alternatively, you can pirate the following interface (not recommended)

Yao.jl/lib/YaoPlots/src/vizcircuit.jl

Line 291 in c23f515

function draw!(c::CircuitGrid, ::I2Gate, address, controls)

[ty-zhao]

The addlabel() function in helperblock.jl would do the job. Thanks!